For the first time in 50 years, an astronaut has voluntarily stepped down in the middle of the training program.
Despite being labelled by NASA as 'potentially hazardous', asteroid 2016 NF23 does not pose a threat.
Physicists have found what could be evidence of 'ghost' black holes from a universe that existed before our own.
The ice deposits could prove to be an important resource for astronauts setting up a manned outpost in the future.
The US military's mysterious X-37B has spent almost a year in space on its latest secretive mission.
Scientists have discovered that the Moon may not be the only natural satellite in orbit around our planet.
Scientists have determined that a significant percentage of planets in our galaxy may be covered in water.
The extrasolar planet known as Kelt-9b is so hot that its atmosphere contains vaporized iron and titanium.
A US State Department official has revealed that one Russian satellite is exhibiting 'very abnormal behavior'.
It is looking increasingly likely that the recent Martian dust storm may have silenced the rover for good.
Trump's plan to establish American dominance in space could be set in motion sooner rather than later.
The probe, which is on a daring mission to the Sun, will become the fastest man-made object in history.
Scientists have determined just how far down Jupiter's colorful atmospheric bands actually go.
Jupiter's largest moon Ganymede is producing 'chorus waves' one million times more powerful than average.
Scientists have been studying a meteorite that dates back to a time before the birth of our solar system.
The iconic rover, which landed on Mars six years ago, has celebrated with a self-congratulating Tweet.
Scientists have discovered discrepancies in our understanding of how fast the universe is expanding.
The huge object is 12.7 times the mass of Jupiter and has a magnetic field 200 times more powerful.
The nine astronauts will be embarking on the first manned launches from American soil since 2011.
Scientists now believe that terraforming Mars to make it more habitable is not possible using today's technology.