Astronauts lose decades' worth of bone mass in space and many do not recover even after a year back on Earth after their missions on the International Space Spation, - a new study finds.
Astronomers have never seen one like this before: a galaxy in miniature, orbiting perilously close to the center of our own galaxy.
Two new worlds of probable rocky mineral goodness have just been found orbiting a star close to our own cosmic neighborhood.
We still don't know just how the first life emerged on Earth. One suggestion is that the building blocks arrived here from space; now, a new study of several carbon-rich meteorites has added weight to this idea.
Compared to most places you might wander in the Solar System, Titan, the giant moon of Saturn, is in many ways strangely familiar to Earth.
Strange double ridges on the surface of Jupiter's ice moon Europa could be signposts to shallow reservoirs of water.
Located in the bright constellation of Centaurus, this luminous cosmic beast is more than 500 times larger than the supermassive black hole at the centre of our own galaxy.
Japanese researchers have discovered more than 20 amino acids on the space rock Ryugu, which is more than 200 million miles (320 million kilometers) from Earth.
Astronomers have discovered two large, mysterious objects blasting out of the brightest black hole in the known Universe.
Scientists have discovered a Super-Earth that is four times the mass of our planet and takes just 10.8 days to complete a whole year.
The discovery of a neutron star emitting unusual radio signals is rewriting our understanding of these unique star systems.
New chemistry "forensics" indicate that the stone named Hypatia from the Egyptian desert could be the first tangible evidence found on Earth of a supernova type Ia explosion. These rare supernovas are some of the most energetic events in the universe.
The hearing included the investigation of more than 140 instances of strange sightings by fighter aircraft instruments and pilots. Officials were only able to explain one of the incidents – a large, deflated balloon.
Nearly 45 years into its space journey, the NASA Voyager 1 probe is sending back mysterious data that has left the spacecraft’s engineers confused.
The eROSITA telescope aboard the Spektr-RG space observatory at the L2 Lagrange point captured the first time in what is known as the ‘fireball’ phase of a classical nova.
