Science & Space :  The Official GrahamHancock.com forums
For all that is Scientifically related to Cosmology and Space. (NB: Please take discussions about UFOs, possible Alien contact, Crop-Circles, Alien Abductions, Planet-X and Niburu to the ‘Paranormal and Supernatural’ Message Board). 
Welcome! Log InRegister
Not just a visitor, but a permanent residents from outside the solar system.

[www.space.com]
Quote

Found! Weird Asteroid in Jupiter's Orbit Is 1st Interstellar Immigrant

...

2015 BZ509 was discovered in November 2014, also by Pan-STARRS (which is short for "Panoramic Survey Telescope and Rapid Response System," in case you were wondering). The space rock is an oddball: Its orbit is "retrograde," meaning 2015 BZ509 moves around the sun in the opposite direction of Jupiter, Earth and most other bodies in the solar system.

"How the asteroid came to move in this way while sharing Jupiter's orbit has until now been a mystery," astronomer Fathi Namouni of the Côte d'Azur Observatory in France, who led the new study, said in a statement. "If 2015 BZ509 were a native of our system, it should have had the same original direction as all of the other planets and asteroids, inherited from the cloud of gas and dust that formed them."

Namouni and study co-author Helena Morais, who's based at São Paulo State University in Brazil, performed computer simulations that traced 2015 BZ509's movements backward through time.

"We showed that 2015 BZ509 has been a retrograde co-orbital of Jupiter over the age of the solar system, i.e., since 4.5 billion years ago," Morais told Space.com via email. "The solar system could not produce retrograde orbits so far back in time, so the only option left is that of capture from another system."

...

Options: ReplyQuote


Subject Views Written By Posted
Asteroid in retrograde orbit must be from outside the solar system 1390 Nolondil 22-May-18 15:05
Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua 121 WVK 18-Jan-19 02:17
Re: Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua 93 D-Archer 18-Jan-19 09:28
Re: Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua 84 WVK 18-Jan-19 15:02
Re: Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua 83 D-Archer 18-Jan-19 15:16
Mod Note > Duplicate Topic Merged 76 Dr. Troglodyte 18-Jan-19 16:13
Re: Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua 59 drrayeye 30-Jan-19 06:47
Re: Have Aliens Found Us? A Harvard Astronomer on the Mysterious Interstellar Object ‘Oumuamua 30 LonelyAngel 28-Feb-19 15:53
Re: Asteroid in retrograde orbit must be from outside the solar system 84 Susan Doris 20-Jan-19 11:14
Re: Asteroid in retrograde orbit must be from outside the solar system 83 Eddie Larry 20-Jan-19 15:46
Re: Asteroid in retrograde orbit must be from outside the solar system 66 Susan Doris 23-Jan-19 12:02
Re: Asteroid in retrograde orbit must be from outside the solar system 83 Nolondil 21-Jan-19 03:16
Re: Asteroid in retrograde orbit must be from outside the solar system 67 Susan Doris 23-Jan-19 13:47
Re: Asteroid in retrograde orbit must be from outside the solar system 68 Nolondil 23-Jan-19 18:51
Re: Asteroid in retrograde orbit must be from outside the solar system 66 Susan Doris 23-Jan-19 19:22
Re: Asteroid in retrograde orbit must be from outside the solar system 61 Eddie Larry 25-Jan-19 18:07
Re: Asteroid in retrograde orbit must be from outside the solar system 55 Susan Doris 27-Jan-19 05:53
Re: Asteroid in retrograde orbit must be from outside the solar system 85 D-Archer 21-Jan-19 13:29
Re: Asteroid in retrograde orbit must be from outside the solar system 32 ianw16 25-Feb-19 22:05
Re: Asteroid in retrograde orbit must be from outside the solar system 29 D-Archer 26-Feb-19 10:46
Re: Asteroid in retrograde orbit must be from outside the solar system 36 ianw16 26-Feb-19 10:59
Re: Asteroid in retrograde orbit must be from outside the solar system 31 D-Archer 27-Feb-19 17:06
Re: Asteroid in retrograde orbit must be from outside the solar system 28 ianw16 28-Feb-19 14:44
Re: Asteroid in retrograde orbit must be from outside the solar system 34 D-Archer 01-Mar-19 12:23
Re: Asteroid in retrograde orbit must be from outside the solar system 31 ianw16 05-Mar-19 11:04


Sorry, only registered users may post in this forum.