NASA's SPHEREx space telescope detected organic molecules coming off comet 3I/ATLAS as the interstellar visitor made its closest approach to Earth in December.

The Hubble Space Telescope captured an amazing view of spiral galaxy NGC 6956. The galaxy is located "214 million light-years away in the constellation Delphinus," according to NASA. Credit: Space.com ...

The team discovered the star by analyzing archival data from NASA’s NEOWISE mission. They used a prediction from the 1970s that theorized that when a star underwent direct collapse, it would leave ...

A “disappearing” star in the Andromeda galaxy is the closest and best candidate for a newborn black hole that astronomers have ever seen ...

The Egg Nebula, located around 1,000 light years away, is home to a dying star entering last phase of its life.

41P/Tuttle-Giacobini-Kresak is now known to be in the Jupiter family of comets, going from a little inside Jupiter's orbit to almost as far as Earth on its 5.4-year orbit. It is notable for its large ...

The Sun would be a far more powerful telescope than any humanity could create in the near future. But to use it, we need to ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...

This stunning image from NASA’s Hubble Space Telescope reveals a dramatic interplay of light and shadow in the Egg Nebula, ...

It's the final act for a star in the constellation Cygnus, some 1,000 light-years away. But this star is not dying without ...

Several planets will line up shortly after sunset, on February 28, during a planetary alignment. Six planets will be visible ...