Mercury
Comet Jacques Is Back! Joins Venus and Mercury at Dawn
Comet C/2014 E2 Jacques has returned! Before it disappeared in the solar glow this spring, the comet reached magnitude +6, the naked…
Observing Challenge: The Moon Brushes Past Venus and Covers Mercury This Week
The summer astronomical action heats up this week, as the waning crescent Moon joins the inner planets at dawn. This…
Mercury’s Hot Flow Revealed by MESSENGER
Our Sun is constantly sending a hot stream of charged atomic particles out into space in all directions. Pouring out from holes…
Curiosity Captures Mercury from Mars
NASA's Curiosity rover may be busy exploring the rugged and rocky interior of Gale Crater, but it does get a…
Mercury’s Ready For Its Close-Up, Mr. MESSENGER
Are you ready for a good close look at Mercury? At an incredible 5 meters per pixel, this is one of…
Observing Alert: See Mercury’s Best Evening Show of the Year
Don't let furtive Mercury slip through your fingers this spring. The next two and a half weeks will be the best…
Mercury Had Quite The Explosive Past, Spacecraft Analysis Shows
Mercury -- a planet once thought to have no volcanism at all -- likely had a very active past, a…
What Are These Hollows on Mercury?
Emily Lakdawalla from the planetary society describes one of the mysteries that's currently fascinating her. There are strange structures on…
Mercury Shrinking: the First Rock from the Sun Contracted More than Once Thought
Whatever Mercury's did to trim down its waistline has worked better than anyone thought -- the innermost planet in our…
Savage Spacesuit: ‘Mythbusters’ Host’s Mercury Costume Looks Real Enough For Space
Who wants Adam Savage's job right now? The cohost of Mythbusters spent the last year working with a San Francisco…