NASA Administrator Bill Nelson wants the space agency to start taking a closer look at UFO reports like the ones coming from Navy pilots in recent years. He has directed NASA scientists to move forward with new ways of discussing the decades-old phenomenon.

An astronomer combined 2 decades worth of X-ray data with radio observations, creating an extraordinary image of the Milky Way center.

Astronomers with the Dark Energy Survey have created the largest-ever map of dark matter, using artificial intelligence. It covers 100 million galaxies.

NASA's Curiosity rover has found hints of organic salts on Mars. If confirmed, they could provide important clues about previous habitability and the potential for ancient microbial life.

The North Atlantic right whale is endangered. A new technology finds the whales as they approach harmful and noisy situations, with the aim of protecting them.

The results of a 30-year survey of exoplanets show our solar system as "normal." That is, giant planets tend to orbit far from their stars.

Whales are magnificent creatures and ... whales make rainbows. Photos and video here.

Coming to know the Summer Triangle, then seeing it again and again on summer nights, is a deep pleasure that adds to the enjoyment of this season.

Astronomers have discovered a spiral galaxy surprisingly near the beginning of the universe, making it the most ancient spiral galaxy found so far.

Our planet does not give up its age easily. Scientists studied the oldest rocks from our planet and solar system to figure out Earth's age.