Demolished World Trade Center pieces aboard Mars Rovers

Scraps from the site of the September 11 terrorist attacks on the World Trade Center were incorporated into two Mars Rovers as a quiet tribute to the tragedy.

Power failure in U.S. Southwest from solar flares? Probably not

Officials warn U.S. Southwest residents to go easy on their electric usage this weekend, after restoring power to millions following Thursday's power failure.

Asian carp: are they a threat to Great Lakes?

Some fear that if invasive Asian carp enter the Great Lakes, the multi-billion dollar recreational fishing and tourism industry there will be devastated.

Vancouver Island in Canada has 6.4 magnitude quake

A strong earthquake - 6.4 magnitude - took place earlier today on Vancouver Island in British Columbia, Canada.

Hurricane season now peaking in the Atlantic

The 2011 Atlantic hurricane season is halfway over, and we are only now entering the most active time for tropical cyclone formation.

Texas wildfires seen from space

Wildfires have been burning in Texas throughout September 2011. This NASA video shows them from space. Texas wildfires are still burning in parts of Texas.

Solar flare number 4 from Sunspot 1283!

The sun produced a fourth solar flare this week, two X-class flares, the strongest kind. Expect possible auroras, especially on the morning of September 11.

Did meteorites bombard Earth with gold?

The meteorites that left craters on the moon likely bombarded Earth with gold and other precious metals.

Penguin finds his way home with New Zealanders

A lost emperor penguin rescued on a New Zealand beach in June 2011 was released into the wild after two months of recovery. Will he find his way home?

Top 10 tips for seeing the supernova

A cosmic explosion - a supernova - from 21 million light-years away has been in the news. To see it, find a star party and experienced observers.