The exact nature of the allusive substance known as dark matter remains a mystery, but observations of massive cosmic structures may hold the key. The latest discovery is a galaxy that consists almost entirely of dark matter.
The search for exoplanets continues in the hope of finding a rocky, habitable planet like our own. The latest discovery is a rocky planet orbiting the closest star to Earth.
Astronomers have spotted a young, massive star still in its early ages of formation, offering a rare glimpse into an important stage in the formation of massive stars.
A spectroscopic method used by geologists on Earth could help NASA's new Mars rover look for signs of life on the Red Planet.
On 21 August 2017, a total solar eclipse will be visible over the USA. With a year to go and 230 million people about to get organised, veteran eclipse-chaser Jamie Carter says it's time to start planning your trip.
Legendary composer Vangelis has created a new album dedicated to the European Space Agency's Rosetta mission.
A pair of galaxies have wandered into a crowded region of space, having spent most of their existence in isolation.
Learning more about the spinning properties of stars could reveal more about how they form, evolve, and whether they are likely to host habitable planets.
Saturn's moon Titan is already known to host seas of liquid methane, but now Cassini has discovered flooded canyons branching out from one of its northern seas.
The force of impact from meteor strikes appears to irradicate all traces of organic material in the Martian surface, scuppering hopes that the events could be used as a cheap method of excavation on the surface of Mars.
For the first time, astronomers have been able to observe the effect on Jupiter's moon Io as the planet's eclipse plunges it into cold darkness.
With the peak of the Perseid meteor shower approaching, the coming week provides ample opportunity to witness one of the best celestial displays of the year.
Observations of the centre of the Milky Way have revealed an area devoid of young stars stretching 8,000 lightyears.
NASA's Juno spacecraft has reached its farthest point from Jupiter in its orbit of the planet and is now coming back round for its first up-close look.
A new study reveals that the source of unusual heating in Jupiter's upper atmosphere could be its most famous feature.
A new type of binary star system has been observed in which a white dwarf blasts its red dwarf companion with radiation, yet the source of the radiation remains unclear.
Studies of Ceres' surface show a distinct lack of craters, revealing clues about the history of its formation and evolution.
A Hubble Space Telescope study reveals information about two exoplanets' atmospheres, paving the way for similar studies with future telescopes.
The line marking the transition in a protoplanetary disc from gas to ice has been observed clearly for the first time, after a young star's sudden burst in temperature caused it to shift dramatically.
Galaxy formation normally occurs from the inside out, with the outer sections containing younger stars than the middle. But new studies of an elliptical galaxy have revealed it is in fact a massive spiral whose sections have formed the other way round.