NASA, Associated Press
NEW YORK — The first batch of hundreds of photos taken in orbit of Mercury show numerous battle scars on the tiny planet. They are from space rocks regularly pelting Mercury at high speeds, scientists said.
NASA's Messenger spacecraft, the first to orbit Mercury, reveals a pock-marked planet full of craters from pieces of asteroids and comets. Mission chief scientist Sean Solomon said that what is surprising to scientists so far is that there are more secondary craters than expected. Those are craters created by the falling soil kicked up from space rock collisions.
Solomon said the craters look different from those on the moon because the space rocks are moving faster and hit Mercury harder.
- Taiwan plane crash survivor crawls out of...
- What happened on the ground the day Flight 17...
- Federal land managers criticized over...
- After government topples crosses in China,...
- Feds cap fines for not buying health...
- Cellphone unlocking set to become legal again
- Disney moves toward $10 hourly starting pay...
- Gaza sides agree to lull but truce efforts stall
- Propaganda war continues in Hobby Lobby... 52
- Appeals courts issue contradictory... 49
- Herbert among 6 governors raising... 46
- Gov. Rick Perry sending National Guard... 25
- Hamas calls for end to blockade of Gaza... 25
- Obama fundraises for Dems; demands GOP... 20
- Feds cap fines for not buying health... 20
- Federal land managers criticized over... 18