On Episode 195 of This Week In Space, Rod Pyle and Tariq Malik talk with Gerry Griffin, former Apollo Flight Director and Director of the Johnson Space Center, about NASA's spaceflight tragedies.

KAIST researchers tested optical frequency comb lasers as reference signals for radio astronomy, aiming to synchronize radio telescopes with light-based timing in VLBI observations.

What actually happens to a spacecraft during its fiery last moments? That's the key question for the European Space Agency's ...

There is only one way to experience lunar gravity while still on Earth, or rather a few thousand feet above its surface: on a parabolic flight. In this exclusive mini-documentary, Space.com reporter ...

Cosmic radio pulses repeating every few minutes or hours, known as long-period transients, have puzzled astronomers since ...

Astronomers at Texas A&M University have discovered a rare, tightly packed collision of galaxies in the early universe, ...

A "crowdsourced" project in which home computer users were enlisted to help analyze radio signals from space is ending after ...

A spectacular new image from the James Webb Space Telescope reveals intricate structures inside the Helix Nebula, where a ...

Data from the James Webb Space Telescope was used to create the largest, highest resolution map of dark matter, just ...

As gas falls toward a black hole, it heats up and shines. If the glow becomes intense enough, it can push incoming gas away. Astronomers call this balancing point the Eddington limit, and for decades ...

The big astronomical event in February is a rare “planetary parade,” according to NASA. You’ll be able to see Mercury, Venus, ...

The first humans stepped on the moon in 1972, and since then, no one has back. Now, NASA is taking the steps to get back to ...