Posts Tagged ‘comets’
Comets deliver water to dry planets?
U. MICHIGAN (US) — A sprawling cloud of water vapor discovered around an emerging solar system is cold enough to form comets, which could eventually deliver oceans to dry planets. Continue…
Monday, October 24, 2011 9:06 - 3 Comments
Top Stories - Oct 10, 2011 9:56 - 2 Comments
First comet found with ‘ocean water’
U. MICHIGAN (US) — For the first time, researchers have detected ocean-like water in a comet—new evidence supporting the theory comets delivered a significant portion of Earth’s oceans. (more…)
Top Stories - Apr 6, 2011 11:17 - 1 Comment
Why comets aren’t just ‘dirty snowballs’
U. ARIZONA (US) — Evidence of liquid water in a comet blows apart current thinking that comets never get warm enough to melt the ice that makes up the bulk of their material. (more…)
Science & Technology - Feb 21, 2011 16:24 - 0 Comments
Comet gets starry-eyed once-over
CORNELL (US) — Despite resembling a flight through artillery fire, the February 14 close encounter of the Stardust spacecraft and the comet Tempel 1 was well worth the experience. (more…)
Top Stories - Feb 14, 2011 12:25 - 0 Comments
Spacecraft to make flirty flyby of comet
CORNELL (US) — Astronomers are anxiously awaiting the Valentine’s Day rendezvous between the Stardust spacecraft and the comet Tempel 1. (more…)
Science & Technology - Jul 31, 2009 15:35 - 0 Comments
Don’t blame comets for Earth’s extinctions
This Hubble picture, taken on July 23, by the new Wide Field Camera 3, is the sharpest visible-light picture taken of the atmospheric debris from a comet or asteroid that collided with Jupiter on July 19. This is Hubble’s first science observation following its repair and upgrade in May. The size of the impactor is estimated to be as large as several football fields. (Credit: NASA, ESA, and H. Hammel/Space Science Institute, Boulder, Colo., and the Jupiter Impact Team)
