... 50 Greatest Mysteries . ... Tune into the Asteroid Day press conference . ... The Chelyabinsk superbolide's mystery continues three years later . ... Three years have passed since the Chelyabinsk (Russia) great scare, and during this time more than two hundred research papers 50 in the last year related directly or indirectly to the 19-meter-wide Chelyabinsk superbolide have been published in scientific peer-review journals, said Carlos de la Fuente Marcos, co-author of one of these research works. ...

Next: Taxonomy of Centaurs and Up: Solar System Astronomy Previous: Solar System Astronomy . Vacheslav Emel'yanenko (South Ural University, Chelyabinsk, Russia), David Asher and Mark Bailey have shown that a significant fraction of the so-called scattered disc objects in the outer solar system cannot be scattered at all, as their orbits are dynamically stable for essentially the age of the solar system, and they never come close enough to Neptune. ... M.E. Bailey . ...

... Comets and Asteroids . ... Earth Satellites . ... Illustration of how NASA could capture an asteroid . ... The meteor was quite small compared to some of the objects out there that could potentially hit the Earth, thus if we understood asteroids it could be potentially life-saving! ... This mission could start as soon as the early 2020s with NASA already simulating an asteroid mission to figure out how astronauts might undertake a spacewalk on it. ... Can NASA lasso an asteroid back to Earth? ...

... Systematic, 8-hour survey time-blocks, for the purpose of observing newly discovered objects. ... The asteroid lightcurve database. ... 1.532 18.2 0.507 21.2 0.127 18.3 0.485 19.4 0.292 23.0 0.056 15.3 1.929 21.3 0.122 16.3 1.217 Rotation Per. (hr) Start Date 11 Jan 2016 25 Jan 2016 7 Feb 2016 23 Feb 2016 26 Feb 2016 3 Mar 2016 1 Mar 2016 14 Mar 2016 13 Mar 2016 23 Mar 2016 28 Mar 2016 17 Apr 2016 25 Apr 2016 3 May 2016 27 May 2016 23 Jun 2016 15 Jul ...