The Dream Chaser space plane continues to eye future crewed trips to the International Space Station, despite the plane's cargo focus.
The U.S. has declared its intention to once again put boots on the moon. That sort of exploration comes with a giant price tag, leaving some to wonder where the money will come from.
NASA is working with private companies to send humans back to the moon. But what happens if those companies get there first?
Roughly 80% of the mass of the universe is made up of dark matter, a material that scientists cannot directly observe. So why do scientists think it dominates?
Black holes are mysterious objects of extreme density, with such strong gravitational attraction that even light cannot escape from their grasp if it comes near enough.
The elusive solar corona will be a key point of scientific studies during the July 2, 2019 total eclipse.
'Oumuamua, the first known interstellar visitor, doesn't need an extraterrestrial solution to explain its oddities, according to a new study.
Despite signs that they are at the end of their lifetime, some galaxies may continue to produce stars, contrary to expectations.
The mysteriously quiet behavior of the Milky Way's supermassive black hole may be influenced by magnetic field lines.
Most of the star nearest to Earth are red dwarfs, but they are too dim to be seen with the naked eye.
Beyond Neptune, the Kuiper Belt is a vast region of icy objects called Kupier Belt Objects (KBOs), including dwarf planets Pluto, Eris, Maumea and Makemake — and possibly a true ninth planet.
The transformation of a water-rich Venus to an overheated world may be preserved in its complex geological features.
For over a decade, a warped disk around a young star puzzled astronomers — but new research suggests explanations for two of the mysteries it poses.
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