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

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

The Perseid meteor shower takes place each year as Earth travels through the debris shed by comet 109P/Swift-Tuttle.

This long-exposure image from the International Space Station shows the growing tension between celestial beauty and human ...

Astronomy and space sciences have mostly avoided the fraudulent practices of paper mills and predatory journals, but that ...

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 ...

Acheron Fossae is filled with dramatic landscape features — most notably, its namesake fossae, or fault-like channels that criss-cross the surface. Here, the land is split into raised ridges known as ...

This stunning view of the full Sturgeon Moon suspended between New York's iconic skyscrapers was taken by Nazli Zeynep ...

Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold hydrogen, new research reveals. They could help scientists figure out when our ...

Liftoff of a Falcon 9 rocket carrying 24 of Amazon Project Kuiper spacecraft is scheduled for 8:35 a.m. ET (1235 GMT) on ...

A new executive order repeals a 52-year-old ban on commercial supersonic flights, while new technology can make supersonic ...