People still don't know how to keep astronauts safe for a Mars mission, but NASA was able to identify at least 25 gaps of knowledge to address the problem.
Scientists may have been wrong about the origin of Pluto's heart.
Theorists believe that there could be life on Mars from photos taken by NASA.
UFOs are probably making their way halfway across the world from Mexico and Canada to Turkey.
Cassini's last mission will have it plunging in and out of Saturn's famous rings
Scientists warn that much is needed to be done for Canada to fulfill Paris Agreement promise.
Donald Trump still does not believe in climate change.
Watchers witness hovering lights believed to be UFOs.
Beneath the surface of Mars is a massive ice sheet that could be used for future life as drinking water.
Donald Trump may have the opposite NASA research priority as Barack Obama, laying focus instead on deep space exploration.
Birds still prefer green neighborhoods, not the urban landscape found in most cities, studies show.
Astronauts celebrate Thanksgiving, too.
