Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

Some NASA Earth science missions have been told to prepare termination plans given the potential for major budget cuts in the ...

Sometimes the “whys” of history are lost, and that holds true to why Capt. John Cleves Symmes Jr. wholeheartedly believed the ...

Stromatolites: You Can't Spell Mold Without Old One of the big problems with Kelvin's estimates for the age of the Earth was that they disagreed with estimates from anywhere else. Science works on ...

The NEO Surveyor fulfills a 2005 act of Congress ordering NASA to catalog 90% of near-Earth objects larger than 459 feet, ...