NASA's James Webb Space Telescope has spotted a young galaxy dating to the early universe - called Firefly Sparkle because ...

The Hubble Space Telescope captured imagery of Jupiter and its Great Red Spot in 2023 and 2024. Credit: NASA, ESA, J.

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

Fresh corroboration of the perplexing observation that the universe is expanding more rapidly than expected has scientists ...

Scientists using the powerful James Webb Space Telescope sought to observe a planet beyond our solar system (an exoplanet) ...

Jupiter reaches opposition; meanwhile, the star Canopus shines bright and the constellation Pictor offers many gems to view.

On December 7, the “king of planets” will line up with the Earth and sun in an event known as opposition. It will be visible ...

Its temperatures could have been cool enough to support life, but warm enough to maintain vast bodies of liquid water. To see ...

An unusual planetary system with three known ultra-low density 'super-puff' planets has at least one more planet, according to new observations.