Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

On December 25, 2021, the largest and most powerful space telescope, the James Webb Space Telescope, was launched into space ...

On May 20, 1990, the Hubble Space Telescope sent its first image to Earth. This photo turned out to be 50% sharper than ...

Now, though, using an instrument called the Dark Energy Spectroscopic Instrument or DESI, scientists have discovered a trove ...

Last week, we discussed the Dog Star, Sirius, the sky’s brightest star. Orbiting Sirius is a faint companion, a tiny star known informally as the Pup.

NASA has updated the odds of a devastating asteroid striking Earth, saying it is now greater than the odds of winning a game ...

The space telescope Gaia has created the largest three-dimensional map of the Milky Way ever. On January 15, 2025, Gaia shut ...

It turns out that one of the most prominent space artists predicted how a strange celestial object would look — 50 years in ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Webb Telescope captures stunning new images of HH 30, revealing a dynamic protoplanetary disc where planets form.

It’s neither fast nor food, but a spectacular object called HH 30 looks appetizing for astronomers in a new image from the ...