One of Lord Rosse’s greatest discoveries was the spiral structure of the Whirlpool Galaxy (M51). He also made a sketch of a ...

When the Sun runs expands into a red giant, it will swallow the inner solar system and raise the temperature in the outer ...

Today in the history of astronomy, Valentina Tereshkova parachutes into history books.

Axiom 4 delayed amid ISS issues; here’s what’s launching from June 16–22, including Blue Origin’s NS-33 and multiple Starlink ...

Few galaxies are really bright and oriented almost exactly edge-on to our line of sight. One of these is NGC 5907: the ...

NASA budget proposal slashes science funding by 47%, putting more than 40 current and planned missions at risk.

See two similarly bright celestial objects with different colors pair up in the evening sky.

The Red Planet stands less than a degree from Leo the Lion’s brightest star in the evening sky tonight, visible in the west.

Earth’s companion has allowed astronomers to define lunar cycles, navigate without technology, and understand celestial ...

Inflation and budget issues are threatening to hobble NASA’s most in-demand telescopes.

Today in the history of astronomy, an eclipse record helps illuminate the timeline of the ancient world.

Astronomy interviews Sally Ride's life partner Tam O’Shaughnessy and director Cristina Costantini ahead of 'Sally' ...