The asteroid Vesta is more like a planet or a moon, new data from NASA's Dawn spacecraft shows.
Our sun is moving through the Milky Way more slowly than thought, new data from NASA's Interstellar Boundary Explorer (IBEX) satellite shows.
ATK has developed a complete commercial crew transportation system, including a spacecraft, abort system, launch vehicle, as well as ground and mission operations.
Scientists using the Herschel Space Observatory have discovered that galaxies with the most powerful, active black holes at their heart produce fewer stars.
NASA's Mars Reconnaissance Orbiter (MRO) has revealed that sand dunes on Mars can put on a surprising turn of speed.
NASA scientists have, for the first time, seen the light from a planet outside our solar system that's a similar size to the Earth.
Solar systems with so-called hot Jupiters don't seem to harbor Earth-sized planets, a discovery that will narrow the search for Earth-like worlds.
Just like human eyes, the Hubble Space Telescope can't observe the sun directly - so NASA scientists plan to study Venus's solar transit in June by using the moon as a mirror.
The image snapped by NASA’s Hubble Space Telescope may seem like a quiet patch of sky at first glance.
Astrophysicists at the University of Warwick have identified four white dwarfs surrounded by dust from shattered planetary bodies which once bore striking similarities to the composition of the Earth.
Astronomers have had their best look yet at a supermassive black hole in the process of shredding a star.
The European Space Agency (ESA) is shifting its focus to study Jupiter's icy moons and plans on launching a mission from Kourou, French Guiana, in 2022.
A recently snapped image of the region surrounding the Messier 78 nebula, just to the north of Orion’s Belt, shows clouds of cosmic dust threaded through the nebula like a string of pearls.
Jon Spaihts may pen scripts about humans exploring the far reaches of the galaxy, but does the Prometheus screenwriter really believe we will ever reach another star?
Astronauts signing up for long-term future missions to Mars and beyond will inevitably face a wide range of health issues, including microgravity-induced lymphocyte programmed cell death.
In a little over a month's time, sky-watchers will have what's likely to be a once-in-a-lifetime experience, seeing Venus pass across the face of the sun.
A population of old, volatile stellar black holes has been discovered, following an 'extraordinary outburst' from one located in a nearby galaxy.
Blue Origin, the spaceflight company backed by Amazon founder Jeff Bezos, has released the next little snippet of information about how its plans are progressing.
Astronomers at Vanderbilt University have managed to identify nearly 700 rogue stars that were likely ejected from the Milky Way galaxy.
Stars running out of nuclear fuel pass through the preplanetary or protoplanetary nebula stage - a short period in the cycle of stellar evolution that has nothing to do with planets.