Saturn has dozens of new moons, bringing it to a total of 274. All of the new moons are between 2 and 4 kilometres wide, but at what point is a rock too small to be a moon?

The solar system is made up of the Sun (our nearest star) and the objects that orbit around it, including planets, asteroids and comets. Planets orbit the Sun in roughly circular paths ...

Called SPHEREx, the instrument will map 450 million galaxies and search for water molecules that may be clinging to space dust ...

PUNCH, or Polarimeter to Unify the Corona and Heliosphere, will study how the sun affects the solar system. The mission ... The observatory will create a map of the sky in 102 colors of infrared ...

Weather has delayed NASA’s launch of the SPHEREx telescope to uncover the ingredients for life in our galaxy, as well as the PUNCH mission to study the sun’s mysteries.

And it was on a mission to create the best, biggest, most accurate map of the ... of making this really great map, is: it creates kind of a coordinate system or a reference frame that these ...

This week Mercury joins the queue. Now every other world in our solar system will be visible among the stars at the same time — if you know where to look. According to Gerard van Belle ...