Test out your knowledge of these famous firsts in skywatching and astrophotography, from the first photos of Earth and the ...

"At the moment, Punctum truly stands apart — it doesn't fit comfortably into any known category," said Shablovinskaia. "And ...

The milestone comes about during a time of uncertainty for NASA due to Trump's effort to reduce the agency's science budget ...

Acheron Fossae is filled with dramatic landscape features — most notably, its namesake fossae, or fault-like channels that ...

This galaxy formed just 930 million years after the Big Bang, offering a rare glimpse into the universe's early years.

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order ...

A Falcon 9 rocket carrying 24 of Amazon Project Kuiper spacecraft lifted off at 8:35 a.m. ET (1235 GMT) on Monday (Aug. 11).

Before the Xenomorph crash-lands on streaming, we talked to five Alien: Earth cast members about the difficulties and fun of ...

The Vera C. Rubin Observatory has begun the 10-year-long Legacy Survey of Space and Time to investigate mysteries like the ...

Using data from the James Webb Space Telescope, astronomers have discovered dormant galaxies with a wide range of masses in the first billion years after the Big Bang, moving one step closer to ...

A sturdy scientific tool for kids, we put the Smithsonian Planetarium Projector to the test in our in-depth review.

A final "gee-whiz" fact you can reveal to your friends is that what you are seeing in Monday's sky is an illusion of ...