Jupiter’s Red Spot gets taller as it shrinks

Scientists have noticed that Jupiter's Great Red Spot has been getting smaller over time. New evidence says the storm is getting taller - and more orange - as it shrinks.

Why do comets emit X-rays? Mystery solved

Researchers fired laser beams onto a plastic foil to mimic some of the conditions comets encounter as they travel through our solar system and to solve a long-standing mystery.

Researchers say 1st interstellar asteroid likely from double star

New research suggests that the 1st confirmed interstellar asteroid - called ‘Oumuamua by astronomers - likely came from a system where 2 stars orbit each other.

Spacecraft sees Jupiter as never before

Check out the massive cyclones at Jupiter's north and south poles, on display in stunning new images from the Juno spacecraft.

Researchers explore the voids between superclusters

An analysis of the cosmic microwave background has provided clues about the gas inside vast cosmic voids in space, between giant superclusters of galaxies.

Where did Mars get its organic molecules?

New computer simulations indicate 1/3 of Mars' organic molecules come from asteroids and comets.

Stunning Mars images, from Curiosity

The Curiosity rover has sent back some beautiful new images of the foothills of Mount Sharp in Gale crater on Mars.

Hubble finds relic galaxy close to home

The Hubble Space Telescope looks at a very rare and odd assemblage of stars that has remained essentially unchanged for the past 10 billion years.

Pluto craft’s next target is Ultima Thule

New Horizons passed Pluto in 2015. With public input, the mission team has nicknamed the spacecraft's next target - on the fringes of our solar system - Ultima Thule.

A peculiar galactic clash

This pair of barred spiral galaxies have just begun a magnificent merger.