Asteroids & Comets
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moomin  Send message Joined: 21 Oct 17 Posts: 6204 Credit: 38,420 RAC: 0 
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It's true. On January 13, 2019 there were 1947 potentially hazardous asteroids (PHAs) like 2019 AG3, space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet:) Recent & Upcoming Earth-asteroid encounters http://spaceweather.com/ Hmm... The "WARNING" is from the UK tabloid The Sunday Express:) |
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Michael Watson Send message Joined: 7 Feb 08 Posts: 1383 Credit: 2,098,506 RAC: 5 |
The Express has taken to trumpeting close-approach asteroids lately, making it sound as if each and every one of them is about to strike the Earth. Quite a way down in the article they admit that 2019 AG3 will miss Earth tomorrow by a bit over three million miles, or nearly thirteen times the distance to the Moon. This isn't even especially close as space rocks go. I keep track of upcoming close approaches of asteroids. I have a list before me with ten asteroids on it, all of which will pass within ten times Lunar distance ( 2.4 million miles) in the next couple of months. The closest pass will be at 1.16 times Lunar distance, or about 280 thousand miles. None of these, nor any other known asteroids have any realistic chance of striking Earth. |
 Lynn   Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 
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Thanks Guys! Well! One never knows? |
Gary Charpentier    Send message Joined: 25 Dec 00 Posts: 30638 Credit: 53,134,872 RAC: 32
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Well! One never knows? Click bait. There seems to be a lot of it going around these days. Adblocks cut down on their making money though. |
Dr Who Fan  Send message Joined: 8 Jan 01 Posts: 3207 Credit: 715,342 RAC: 4
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'Welcome to the interstellar club': Controversial professor STILL claims Oumuamua is an alien probe and reveals the message humans will receive when we reach deep space
A Harvard professor who received huge backlash after claiming the mysterious cigar-shaped space rock Oumuamua was an alien probe is steadfastly standing by his controversial theory. |
Pierre A Renaud  Send message Joined: 3 Apr 99 Posts: 998 Credit: 9,101,544 RAC: 65 
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The Haaretz source is paywalled, alas. Here's Futurism's take (italicized words are mine) : "We Don't Know Therefore Aliens": Harvard Astronomer Avi Loeb Defends - Again - Hypothesis That Asteroid 'Oumuamua Was Alien Probe https://futurism.com/alien-probe-harvard-astronomer-oumuamua 'Welcome to the interstellar club': Controversial professor STILL claims Oumuamua is an alien probe and reveals the message humans will receive when we reach deep space    Apr 3, 1999 - May 3, 2020
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JaundicedEye  Send message Joined: 14 Mar 12 Posts: 5375 Credit: 30,870,693 RAC: 1
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'Welcome to the interstellar club' "There are more things in heaven and earth, Horatio, Than are dreamt of in your philosophy." Hamlet Act 1, scene 5, 159–167 ......and if he's correct? As to N.E.O.s and P.H.A.s I do not fear a collision with any object we have found...........it's the ones we HAVEN'T found that will be the 'sucker punch'. When approaching from certain directions there will be little if any advance warning, ........just time enough to place your head between your legs and kiss your ass goodbye.......  "Sour Grapes make a bitter Whine." <(0)> |
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moomin Send message Joined: 21 Oct 17 Posts: 6204 Credit: 38,420 RAC: 0
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It doesn't need to be a big asteroid. The undetected Chelyabinsk meteor was only an approximately 20 m (66 ft) wide. https://en.wikipedia.org/wiki/Chelyabinsk_meteor Due to its high velocity and shallow angle of atmospheric entry, the object exploded in an air burst over Chelyabinsk Oblast, at a height of around 29.7 km (18.5 mi; 97,000 ft).[7][8] The explosion generated a bright flash, producing a hot cloud of dust and gas that penetrated to 26.2 km (16.3 mi), and many surviving small fragmentary meteorites, as well as a large shock wave. The bulk of the object's energy was absorbed by the atmosphere, with a total kinetic energy before atmospheric impact estimated from infrasound and seismic measurements to be equivalent to the blast yield of 400–500 kilotons of TNT (about 1.4–1.8 PJ) range – 26 to 33 times as much energy as that released from the atomic bomb detonated at Hiroshima.[9] |
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JaundicedEye Send message Joined: 14 Mar 12 Posts: 5375 Credit: 30,870,693 RAC: 1
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http://spaceweather.com/ A VISITOR FROM BEYOND THE KUIPER BELT: Comet Iwamoto (C/2018 Y1) is coming. On Feb. 12th and 13th, the dirty snowball will make a rare visit to the inner solar system, passing by our planet only 0.3 AU (45 million km) away. Here it is, approaching Earth on Feb. 7th from the constellation Virgo. "Sour Grapes make a bitter Whine." <(0)> |
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JaundicedEye Send message Joined: 14 Mar 12 Posts: 5375 Credit: 30,870,693 RAC: 1
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As Carl Sagan said......"Billions and Billions"....... "Sour Grapes make a bitter Whine." <(0)> |
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Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30638 Credit: 53,134,872 RAC: 32
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Another Oumuamua? Nope. This one is in orbit, Oumuamua wasn't. |
Byron Leigh Hatch @ team Carl Sagan  Send message Joined: 5 Jul 99 Posts: 4548 Credit: 35,667,570 RAC: 4
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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123
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The kuiper belt has so much we don't know. JE, thanks for the well put together story! |
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JaundicedEye Send message Joined: 14 Mar 12 Posts: 5375 Credit: 30,870,693 RAC: 1
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The kuiper belt has so much we don't know. JE, thanks for the well put together story! Kudos to Spaceweather.com, no credit to me, just passing it along. "Sour Grapes make a bitter Whine." <(0)> |
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moomin Send message Joined: 21 Oct 17 Posts: 6204 Credit: 38,420 RAC: 0
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http://spaceweather.com/archive.php?view=1&day=11&month=02&year=2019 SURPRISE! ULTIMA THULE IS A PANCAKE: When NASA's New Horizons spacecraft flew past Ultima Thule last month, first-look images suggested the Kuiper Belt object was shaped like a snowman. New data just beamed back by the distant spacecraft tell a different story. It's a pancake!  Blin! as they say in Russia. Another Oumuamua. LOL:) |
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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123
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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123
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An asteroid twice as big as the bolide that exploded over Russia in 2013 will whiz by us next week at a distance that's closer to Earth than the moon. Despite what tabloid headlines might lead you to believe, small asteroids zip by the Earth on a fairly regular basis. Most of these space rocks are so little they'd burn up even if they did collide with our atmosphere, and astronomers discover many of them when Earth is already in their rear-view mirror. https://www.cnet.com/news/unusually-big-asteroid-will-soon-pass-closer-to-earth-than-the-moon/ |
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Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30638 Credit: 53,134,872 RAC: 32
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https://www.cnn.com/2019/04/17/us/interstellar-meteor-object-harvard-study-scn-trnd/index.html A meteor from another solar system may have hit Earth, and the implications are fascinating Panspermia is the word. |
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JaundicedEye Send message Joined: 14 Mar 12 Posts: 5375 Credit: 30,870,693 RAC: 1
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.....it could be downright ancient. ....oh, my. Another who 'wades deeply in shallow waters'. "Sour Grapes make a bitter Whine." <(0)> |
W-K 666  Send message Joined: 18 May 99 Posts: 19047 Credit: 40,757,560 RAC: 67 
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It's that bloody idiot Loeb again!!! They are going to have a field day in 10 years, Friday April 13th 2029 to be exact. |
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