Most volcanic activity on Mercury stopped about 3.5 billion years ago

more »
New research finds that major volcanic activity on the planet Mercury most likely ended about 3.5 billion years ago. These findings add insight into the geological evolution of Mercury in particular, and what happens when rocky planets cool and contract in general.
via Science Daily
Zazzle Space Exploration market place

Do black holes have a back door?

more »
One of the biggest problems when studying black holes is that the laws of physics as we know them cease to apply in their deepest regions. Large quantities of matter and energy concentrate in an infinitely small space, the gravitational singularity, where space-time curves towards infinity and all matter is destroyed. Or is it? A recent study suggests that matter might in fact survive its foray into these space objects and come out the other side.
via Science Daily
Zazzle Space Exploration market place

Chicago sees floods of LHC data and new results at ICHEP

Veins on Mars were formed by evaporating ancient lakes

more »
Mineral veins found in Mars's Gale Crater were formed by the evaporation of ancient Martian lakes, a new study has shown.
via Science Daily
Zazzle Space Exploration market place

Apollo 15 Panorama

more »
On July 31, 1971, Apollo 15 astronauts Jim Iwrin and Dave Scott deployed the first Lunar Roving Vehicle on the Moon. Using it to explore their Hadley-Apennine landing site they spent nearly three days on the Moon while Al Worden orbited above. This digitally stitched panorama shows Scott examining a boulder on the slope of 3.5 kilometer high Mons Hadley Delta to the left of their electric-powered, four-wheel drive vehicle. The sun at his back, Irwin casts the strong shadow to the rover's right. The panoramic view extends farther right to the sunward direction, over Hadley Rille and lunar terrain, revealed in harsh, unfiltered sunlight. In total, the rover traversed 28 kilometers (17 miles) on the lunar surface. The Apollo 15 mission returned about 76 kilograms of moon rocks to planet Earth. Tomorrow's picture: light-weekend

---

< | Archive | Submissions | Search | Calendar | RSS | Education | About APOD | Discuss | >

---

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
NASA Web Privacy Policy and Important Notices
A service of: ASD at NASA / GSFC
& Michigan Tech. U.

Comet odyssey

more »

Animation visualising Rosetta’s two-year adventure flying alongside a comet
via ESA Space Science
http://www.esa.int/spaceinvideos/Videos/2016/08/Rosetta_s_journey_around_the_comet