Don't know where it should go? Stick it here.

Message boards : Science (non-SETI) : Don't know where it should go? Stick it here.
Message board moderation

To post messages, you must log in.

Previous · 1 . . . 12 · 13 · 14 · 15 · 16 · 17 · 18 . . . 19 · Next

AuthorMessage
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2116004 - Posted: 11 Mar 2023, 22:43:53 UTC

3rd time lucky?

Last-minute aborts thwart launch of world's first 3D-printed rocket.

After two aborted attempts on Saturday, a California-based aerospace firm opted to postpone the launch of the world's first 3D-printed rocket.

Relativity Space’s Terran 1 booster was slated to lift off at 4 p.m. ET from Florida’s Cape Canaveral Space Force Station, but with 45 seconds to go in the countdown, ground controllers called off the attempt. Roughly an hour earlier, the rocket suffered a separate last-minute abort after the booster’s engines had fired.

It’s not clear what prompted Relativity’s launch controllers to stand down, and the company has not yet announced a new launch date and time.

“Based on initial data review, vehicle is healthy. More info to follow on cause of aborts today. Thanks for playing,” the company said in an update on Twitter.

The company’s first liftoff attempt on Wednesday was called off after an issue was detected with the propellant temperature in the rocket’s second stage. Relativity has not said whether Saturday’s aborts were related to the same issue....
Cheers.
ID: 2116004 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2116551 - Posted: 23 Mar 2023, 10:54:38 UTC

No luck on the 3rd try either.

Launch debut of Relativity Space rocket made out of 3D-printed parts ends in failure, no orbit.

A rocket made almost entirely of 3D-printed parts has made its launch debut, lifting off amid fanfare but failing three minutes into flight, far short of its intended orbit.

There was nothing aboard Relativity Space's test flight, except for the company's first metal 3D print made six years ago.

The startup wanted to put the souvenir into a 200-kilometre-high orbit for several days before having it plunge through the atmosphere and burn up along with the upper stage of the rocket.

As it turned out, the first stage did its job after lift-off from Cape Canaveral Space Force Station and separated as planned.

However, the upper stage appeared to ignite and then shut down, sending it crashing into the Atlantic.....
Cheers.
ID: 2116551 · Report as offensive     Reply Quote
W-K 666 Project Donor
Volunteer tester

Send message
Joined: 18 May 99
Posts: 18943
Credit: 40,757,560
RAC: 67
United Kingdom
Message 2116611 - Posted: 24 Mar 2023, 22:17:56 UTC

99.99% of mathematicians, for the last 2,000 years, will tell you that trying to find a proof of Pythagoras' Theorem is a circular argument.

But two American schoolgirls dispute that, US teens say they have new proof for 2,000-year-old old mathematical theorem
ID: 2116611 · Report as offensive     Reply Quote
Profile ML1
Volunteer moderator
Volunteer tester

Send message
Joined: 25 Nov 01
Posts: 19956
Credit: 7,508,002
RAC: 20
United Kingdom
Message 2116617 - Posted: 24 Mar 2023, 23:11:51 UTC - in response to Message 2116551.  
Last modified: 24 Mar 2023, 23:12:39 UTC

No luck on the 3rd try either.

Launch debut of Relativity Space rocket made out of 3D-printed parts ends in failure, no orbit.

A rocket made almost entirely of 3D-printed parts has made its launch debut, lifting off amid fanfare but failing three minutes into flight, far short of its intended orbit...

Why do ignorant journalists have to be so depressingly (stupidly) sensationally negative?!

That flight has been a blazing success and met the prime objectives aimed for it.

Indeed for a first flight of a rapid prototyped design, that has been an amazing success!


For a more balanced report/summary/comment, see:

Scott Manley - First 3D Printed Rocket Reaches Space But Engine Fails Before Orbit



Keep searchin'!
Martin
See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)
ID: 2116617 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2116797 - Posted: 29 Mar 2023, 7:28:52 UTC

Second hole 20 times larger than Earth rips through the sun's surface.

A massive hole 20 times larger than Earth has ripped through the sun - making it the second to appear in one week.

The gaping 'coronal hole' is unleashing 1.8-million-mile-per-hour solar winds toward our planet, which will impact us on Friday.

Scientists are closely monitoring the situation, to see if the winds will impact Earth's magnetic field, satellites and technology.

The first hole, spotted on March 23, is 30 times the size of Earth, which released solar winds that triggered stunning auroras as far south as Arizona....

Cheers.
ID: 2116797 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2116879 - Posted: 30 Mar 2023, 20:38:28 UTC

Apparently it was a big bang.

Solar system hit by the most powerful explosion in the universe.

The solar system might have been hit by the brightest explosion ever seen, scientists have said.

The intensity of the blast was such that researchers were unable to properly study it, since it blinded the instruments that would usually be used to measure its intensity.

The pulse of intense radiation began its life in a cosmic explosion two billion light years away from us. Since then, it has been smashing through the universe, reaching our solar system in October last year.

Scientists said this type of event is a gamma-ray burst (GRB) - known for being some of the strongest and brightest explosions in the universe.

This GRB was deemed so exceptional that astronomers said it was the brightest of all time (BOAT) since the beginning of human civilisation.

The researchers said the event, dubbed GRB 221009A, blinded most gamma-ray instruments in space.

This meant astronomers could not measure the real intensity of the emission and had to reconstruct its energy expenditure from past and present data.

An analysis of 7,000 GRBs suggests that GRB 221009A is 70 times brighter than any yet seen and an event like this occurs once every 10,000 years....
ID: 2116879 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2117103 - Posted: 4 Apr 2023, 20:45:38 UTC

1 of Richard's projects has failed, anyone want to buy a slightly used 747?

Branson's Virgin Orbit files for bankruptcy.

Richard Branson's Virgin Orbit has filed for Chapter 11 bankruptcy in the United States after the satellite launch company failed to secure the long-term funding needed to help it recover from a January rocket failure.

The California-based company lodged the filing in the US Bankruptcy Court for the District of Delaware seeking a sale of its assets after announcing the lay-off of roughly 85 per cent of its 750 employees last week.

"We believe that the Chapter 11 process represents the best path forward to identify and finalise an efficient and value-maximising sale," Virgin Orbit chief executive Dan Hart said in a statement.

The company listed assets of about $US243 million ($359 million) and total debt at $153.5 million as of September 30 in the filing.

Virgin Orbit went public in 2021 through a blank-check deal, raising $255 million less than expected.

Spun off from Mr Branson's space tourism firm Virgin Galactic in 2017, Virgin Orbit air-launches rockets from beneath a modified Boeing 747 plane to send satellites into orbit.

Virgin Orbit's strategy has been that launching small rockets from a 747 in flight would allow for short-notice launches from anywhere.

But a shift in demand toward larger launch rockets and more cost-effective shared rides to space on SpaceX's Falcon 9 rocket over the past two years raised the competitive stakes for Virgin Orbit, analysts and industry executives have said....
ID: 2117103 · Report as offensive     Reply Quote
Dr Who Fan
Volunteer tester
Avatar

Send message
Joined: 8 Jan 01
Posts: 3157
Credit: 715,342
RAC: 4
United States
Message 2117625 - Posted: 14 Apr 2023, 0:30:24 UTC

Goddard Space Center has a new center director! Last week Dr. Makenzie Lystrup was sworn in on Carl Sagan’s “Pale Blue Dot”

“Imagination will often carry us to worlds that never were, but without it we go nowhere.” — Carl Sagan
ID: 2117625 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2117943 - Posted: 19 Apr 2023, 21:42:47 UTC

A remote town in W.A. has being inundated by those wanting a look.

Total solar eclipse draws thousands to Exmouth for world's best view of 'masterpiece' in the sky.

Key points:

The total solar eclipse will occur at 11:27am AWST today.

People in Exmouth will get about 60 seconds of totality, the most of anywhere on the planet.

Around 12,000 people are already in town, with more due to arrive today.
Exmouth has a population of around 3000 people.

Cheers.
ID: 2117943 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2118297 - Posted: 26 Apr 2023, 0:55:41 UTC

It looks like that didn't work.

Japanese company ispace says private Moon landing likely to have failed.

..The company's Hakuto-R Mission 1 (M1) lander had been due for a lunar touchdown on Tuesday afternoon Australian time.

But engineers lost contact with the probe when it was about 90 metres above the Moon's surface.

"We lost the communication, so we have to assume that we could not complete the landing on the lunar surface," ispace chief executive Takeshi Hakamada said.

"Our engineers will continue to investigate the situation," he continued.

"At this moment, what I can tell is we are very proud of the fact that we have already achieved many things during this mission 1."

In December 2022, the spacecraft was launched from Cape Canaveral, Florida, on a SpaceX rocket and completed eight out of 10 mission objectives in space.

The launch provided valuable data for ispace's next landing attempt in 2024 and a second spacecraft is already under construction, Mr Hakamada said.....
Better luck next time.

Cheers.
ID: 2118297 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2118613 - Posted: 1 May 2023, 22:05:54 UTC

Scientists Are Getting Kinda Anxious About a Pothole in Space.

Earth’s magnetic field is incredibly important to life on our planet. Beyond allowing for compass navigation and displaying the Aurora Borealis way up north, it is responsible for shielding us from the worst effects of the Sun’s rays. A little bit of Sun, we need—a lot would have some serious negative impacts.

Thankfully, we do have a magnetic field. But there’s a bit of a problem: Our magnetic field has a dent in it—what ScienceAlert calls a “pothole in space.”

It’s called the South Atlantic Anomaly (SAA), and it’s not a physical dent. It’s a region in the skies between South America and Africa where our magnetic field is weaker than it is around the rest of the planet. This weakness isn’t life-threatening—it would have to be way more significant to threaten the planet’s surface—but it is an issue for the craft we’ve launched into orbit.

Objects like satellites and other spacecraft reside within our magnetic field as they orbit the Earth. As such, they still benefit from its protection. Take that away, and you get a mess of potential technical difficulties—from small glitches to data loss and serious damage of important components—caused by too much exposure to high energy particles from the Sun....
ID: 2118613 · Report as offensive     Reply Quote
Dr Who Fan
Volunteer tester
Avatar

Send message
Joined: 8 Jan 01
Posts: 3157
Credit: 715,342
RAC: 4
United States
Message 2119049 - Posted: 10 May 2023, 1:56:25 UTC
Last modified: 10 May 2023, 1:57:38 UTC

ID: 2119049 · Report as offensive     Reply Quote
Dr Who Fan
Volunteer tester
Avatar

Send message
Joined: 8 Jan 01
Posts: 3157
Credit: 715,342
RAC: 4
United States
Message 2119312 - Posted: 13 May 2023, 14:25:19 UTC

The long awaited mission that could transform our understanding of Mars
A next-generation instrument on a delayed Martian rover may be the key to answering the question of life on the Red Planet

It was a painful setback for the beleaguered Rosalind Franklin rover, originally approved in 2005. Budget woes, partner switches, technical issues and the Covid-19 pandemic had all, in turn, caused previous delays. And now, a war.
ID: 2119312 · Report as offensive     Reply Quote
Michael Watson

Send message
Joined: 7 Feb 08
Posts: 1382
Credit: 2,098,506
RAC: 5
Message 2119323 - Posted: 13 May 2023, 17:27:57 UTC

That's an excellent article about the Franklin Mars Orbiter, by Carmen Drahl. Really first rate science writing! Let's hope there are no more delays for this long-postponed mission.

If Mars is found to have life, past or present, it will tend to support the idea that life is very plentiful in the galaxy, especially if it can be shown to have originated independently, instead of transferred from Earth to Mars by meteorite impacts.

The era in which that life existed is key, here. Early enough, and Earth would have still been too hot to be a credible source of Mars life. Mars, being smaller, cooled faster, and could have become habitable earlier.
ID: 2119323 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2120051 - Posted: 26 May 2023, 21:09:09 UTC

ID: 2120051 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2120281 - Posted: 1 Jun 2023, 23:39:36 UTC

Yet another setback for Boeing and NASA.

Boeing crewed space flight for NASA delayed again in another setback.

Boeing’s first flight with astronauts on its Starliner spacecraft is going to be delayed yet again, this time due to ongoing issues with the design of the capsule’s parachute system and tape inside the spacecraft that the company recently discovered was flammable, Boeing and NASA said Thursday.

The announcement is the latest setback for a beleaguered program that has suffered years of technical problems — stuck valves, a fuel leak and serious software malfunctions — that have delayed its first crewed flight by years, sent its costs soaring and harmed its reputation as a premier spacefaring company.

Ten years after it was awarded a $4.2 billion contract by NASA, the company has yet to fly any NASA astronauts to the International Space Station. And late last year, the company said it had to take another charge for the program against earnings, bringing the total to nearly $900 million in sunk costs....
Will it ever make it into space? Meanwhile NASA has another problem elsewhere.

In ‘Agonizing’ Episode, NASA Lost Contact With Ingenuity Helicopter for Days.

The Ingenuity helicopter paved new ground (air?) in April 2019, when it communicated data of its first flight—the first powered, controlled flight on another planet—to NASA scientists on Earth.

But recently, NASA scientists have only received transmissions from the helicopter intermittently and unpredictably. The communication breakdown is making it difficult for the Ingenuity team to guide the craft around the Martian landscape—and ironically, it was that very landscape that caused the NASA team to lose contact with the helicopter.

According to a status update written by Travis Brown, Ingenuity’s chief engineer, the communication problems started in earnest following Ingenuity’s 49th flight on April 2, 2023, which set records for the rotorcraft’s height and airspeed.

Following downlink of data from its 49th flight, the Ingenuity team failed to uplink instructions for the rotocraft’s next flight.

But the issues with Ingenuity’s communication go back farther, Brown wrote. Shortly after the rotorcraft’s 40th flight in January 2023, Ingenuity began struggling with “brownouts”—periods in which the chopper would slip into its low-power mode, which keeps the craft alive during harsh winter nights on Mars. Last year, a cold-induced low power state gave NASA engineers a similar scare about the helicopter’s survivability....
Cheers.
ID: 2120281 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2120325 - Posted: 2 Jun 2023, 22:04:17 UTC

See what's going on on Mars.

First-of-its-kind Mars livestream by ESA spacecraft interrupted at times by rain on Earth.

A European spacecraft around Mars sent its first livestream from the red planet to Earth on Friday to mark the 20th anniversary of its launch, but rain in Spain interfered at times.

The European Space Agency broadcast the livestream with views courtesy of its Mars Express, launched by a Russian rocket from Kazakhstan in 2003.

It took nearly 17 minutes for each picture to reach Earth, nearly 200 million miles (300 million kilometers) away, and another minute to get through the ground stations.

The transmission was disrupted at times by rainy weather at the deep space-relay antenna in Spain.

Still, enough images made it through to delight the European space officials hosting the hourlong livestream. The initial views showed about one-third of Mars, which gradually grew bigger in the frames before shrinking again as the spacecraft circled the planet. White clouds could clearly be seen in some of the shots.

“If you were currently sitting on board Mars Express ... this is what you would be seeing,” said Simon Wood, the mission's spacecraft operations engineer. “We typically don't normally get images in this way.” ....
Enjoy the view.

Cheers.
ID: 2120325 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2120987 - Posted: 15 Jun 2023, 23:34:16 UTC

Could this theory possibly be true?

Two structures found deep in the Earth could be the remains of an ancient planet.

The depths of the Earth, still largely unexplored, harbour tantalizing mysteries. A team of scientists recently presented evidence that two gigantic structures deep within our planet could be the remains of an ancient planet.

Large Low Shear Velocity Provinces (LLSVPs) are vast structures that baffle researchers due to their incredible size and puzzling properties. Existing near Earth’s core-mantle boundary, one structure resides beneath Africa, the other under the Pacific Ocean. Scientists have long debated their density and composition.

Intriguingly, a recent analysis of seismic data is offering new insights. The two structures might be remnants of an ancient planet that collided with the Earth during its formative years, leaving its indelible mark etched into the fabric of our world.

The hypothesis hinges on understanding the chaotic infancy of our solar system. During Earth’s formation period, our planet was a dynamic and evolving entity. It encountered numerous other bodies, often colliding and merging with them. Each of these violent events contributed to Earth’s growth. In fact, one such proposed collision with a Mars-sized ancient planet named Theia is thought to have led to the creation of our Moon......
Cheers.
ID: 2120987 · Report as offensive     Reply Quote
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34540
Credit: 261,360,520
RAC: 489
Australia
Message 2120991 - Posted: 15 Jun 2023, 23:45:59 UTC

There's a secret about the company that's still trying to catch falling rockets with a helicopter.

Rocket Lab Is Planning a Secret Launch. Here's What We Think It Could Be.

NASA’s launch facility in Virginia has been prepped for an upcoming Rocket Lab launch, the details of which are under tight wraps.

Rocket Lab is gearing up for its mystery launch, which is scheduled to take place sometime between June 15 to 20 from NASA’s Wallops Flight Facility. “There is no live stream planned for launch and the Wallops Visitor Center will not be open for launch,” NASA Wallops wrote on Twitter.

The California-based company has not disclosed any information regarding its upcoming launch, although it’s presumed that Rocket Lab will be flying its suborbital testbed rocket for the first time, Space.com first reported.

Rocket Lab’s HASTE (Hypersonic Accelerator Suborbital Test Electron) launch vehicle is set to make its debut in the first half of 2023 for a “confidential customer,” the company had announced earlier in April. HASTE, derived from the company’s Electron rocket, is designed to test hypersonic technologies for vehicles that are capable of traveling at more than five times the speed of sound......
Cheers.
ID: 2120991 · Report as offensive     Reply Quote
Dr Who Fan
Volunteer tester
Avatar

Send message
Joined: 8 Jan 01
Posts: 3157
Credit: 715,342
RAC: 4
United States
Message 2120994 - Posted: 16 Jun 2023, 0:37:50 UTC - in response to Message 2120991.  

There's a secret about the company that's still trying to catch falling rockets with a helicopter.

Rocket Lab Is Planning a Secret Launch. Here's What We Think It Could Be.

NASA’s launch facility in Virginia has been prepped for an upcoming Rocket Lab launch, the details of which are under tight wraps. ...


Are they afraid of ridicule from the press and public after another possible massive failure?
ID: 2120994 · Report as offensive     Reply Quote
Previous · 1 . . . 12 · 13 · 14 · 15 · 16 · 17 · 18 . . . 19 · Next

Message boards : Science (non-SETI) : Don't know where it should go? Stick it here.


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.