When we directly observe distant worlds, some exoplanets might appear Earth-like, even when they are not.
"I cried when I got my wings!" - Inspiration4 pilot Sian Proctor.
Astronomers have identified a cosmic oddity: What may be the first planet ever discovered that orbits three stars.
One more line on his CV. Thomas Pesket was the first Frenchman to take command...
The Pentagon will soon award contracts for a dozen-dozen new satellites.
One more line on his CV. Thomas Pesket was the first Frenchman to take command...
Galaxy NGC 5728 has quite a powerhouse at its center.
This composite image of galaxy cluster MACSJ 0138 shows data from the Atacama Large Millimeter/submillimeter Array (ALMA) and NASAs Hubble Space Telescope. The magnified section shows...
Earth is reflecting less light as its climate continues to change, new research suggests.
Einstein's ideas have shaped the way we see and interact with the universe.