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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
Imagine living on a planet with seasons so erratic you would hardly know whether to wear Bermuda shorts or a heavy overcoat. That is the situation on a weird, wobbly world found by NASA's planet-hunting Kepler space telescope. No Thanks. Astronomers say, though it’s in no danger of falling down. http://www.nasa.gov/press/2014/february/kepler-finds-a-very-wobbly-planet/index.html#.UvGI7LTKRLM |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
A wobbly planet would not support intelligent life as we know it. |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
A wobbly planet would not support intelligent life as we know it. Hm...;) http://io9.com/why-the-earth-is-wobbling-1513026278?utm_content=bufferf0577&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer rOZZ Music Pictures |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
What exactly constitutes an Earth doppelganger? This, and future missions in the search for exoplanets. rOZZ Music Pictures |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
i am pretty sure if we would be at 2,000 light years from here and try to find an exoplanet here , we wouldnt find nor the earth, but also wouldnt find Jupiter nor Saturn. Now you're only speaking of the gravitational microlensing technique:) [edit] The Doppler technique, excuse me. Not possible for earth like planets unfortunately... rOZZ Music Pictures |
ML1 Send message Joined: 25 Nov 01 Posts: 20265 Credit: 7,508,002 RAC: 20 |
The planets in our solar system very definitely do make our sun move... Look up solar barycentre... There is a nice plot showing how the gravitational centre of our solar system is sometimes OUTSIDE the volume of our sun. All that gives a very nice Doppler signal... (And the optical occlusion of a transit is a different effect.) Keep search in, Martin |
betreger Send message Joined: 29 Jun 99 Posts: 11361 Credit: 29,581,041 RAC: 66 |
I just attended a lecture on the Kepler telescope given by Dr. Jeffrey Coughlin, a NASA scientist, who live locally and telecomutes. He stated among other things that the "fix" called K2 is currently gathering data. So that is very good news. |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
i am pretty sure if we would be at 2,000 light years from here and try to find an exoplanet here , we wouldnt find nor the earth, but also wouldnt find Jupiter nor Saturn. Your logic seems sound to me. +1 Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
Samuel Send message Joined: 13 Nov 07 Posts: 40 Credit: 554,815 RAC: 0 |
+100 i am pretty sure if we would be at 2,000 light years from here and try to find an exoplanet here , we wouldnt find nor the earth, but also wouldnt find Jupiter nor Saturn. |
betreger Send message Joined: 29 Jun 99 Posts: 11361 Credit: 29,581,041 RAC: 66 |
Astronomy is often a long term game. The people who dicovered the oldest star so far known , the Methuselah star," cataloged as H D 140283, have been looking for 30 years. This is something we at SETI need to keep mind. |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
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Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
NASA's Kepler mission announced Wednesday the discovery of 715 new planets. These newly-verified worlds orbit 305 stars, revealing multiple-planet systems much like our own solar system. Nearly 95 percent of these planets are smaller than Neptune, which is almost four times the size of Earth. This discovery marks a significant increase in the number of known small-sized planets more akin to Earth than previously identified exoplanets, which are planets outside our solar system. http://www.nasa.gov/ames/kepler/nasas-kepler-mission-announces-a-planet-bonanza/#.Uw45Ts5v45s update |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
To be clear. Neptune is a gas giant that is 17 times more massive than the Earth. It is way way out of the habitable zone of our Sun. I would like to see them find a truly Earth like planet |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
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William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
Earth-like planets, they found already. It is important for all of us to define what we mean when we say "Earth-Like" It is far more than finding one that is only a few times as big as Earth in my opinion. |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
Earth-like planets, they found already. My personal definition of earth-like planets is rocky planets orbiting the star in its habitable zone with perfect conditions for life to manifest and evolve. rOZZ Music Pictures |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
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Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
A white dwarf is acting like a magnifying glass in space according to data from NASA’s Kepler spacecraft. http://www.nature.com/news/white-dwarf-acts-as-cosmic-magnifying-glass-1.15072 Using data from NASA’s Kepler spacecraft, physicists Ethan Kruse and Eric Agol of the University of Washington in Seattle observed an increase of just 0.1% in the larger star's brightness every 88 days, lasting for 5 hours. They say that the effect is the result of an orbiting white dwarf — a dense, compact, burnt-out star whose gravitational effects act as a magnifying glass every time it crosses the line of sight between its companion star and Earth. Kruse and Agol publish their findings in Science today. Cheers. |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
Solar power gives planet hunter Kepler new life Extended mission will search the ecliptic for exoplanets, star clusters, supernovae, and galaxies. After being crippled when two of its four reaction wheels failed, the Kepler spacecraft, launched to find planets orbiting other stars, is back in action through innovative use of solar power. http://thespacereporter.com/2014/05/solar-power-gives-planet-hunter-kepler-new-life/ :-) |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
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