The black hole at the centre of our Galaxy has shown an increase in X-ray activity over the past year. Could it be a result of the close approach of a mysterious cosmic object?
Galactic dust and fog prevents our telescopes from detecting stars hiding at the centre of the Milky Way. But a new detection method using radio waves has been devised that could reveal stars no one has ever seen before.
The collision that occurs between two black holes is a colossal event that triggers massive gravitational waves. Scientists are closer to understanding the nature of two merging black holes and the cyclical light pattern given off as they orbit one another.
Cassini data continues to prompt new discoveries about Saturn and its moons. The latest revelation is of a global ocean lying beneath Enceladus's icy crust.
For the first time, astronomers have managed to capture the early stages of a forming planetary system, with the discovery of a young parent star that is already hosting a planet.
The discovery of an active, ferocious star-forming galaxy at the centre of a cluster is allowing astronomers to learn more about collisions that occur between gas-rich galaxies known as 'wet mergers'.
The mysterious bright spots on the surface of dwarf planet Ceres are revealed in even greater detail in the latest image sent back by NASA's Dawn spacecraft.
A team of astronomers have used a new technique to study Hubble data and reveal signs of the earliest galaxies that formed after the Big Bang.
The success of a new experiment led by ESA is furthering the development of technologies that will help control space-based activites from Earth.
Research using Hubble images has revealed a similarity between the stars in the Andromeda Galaxy and those in our own that was previously incalculable.
Observations by Cassini orbiter show one of the rings takes longer to cool down, suggesting it is made up of new, dense objects that may have been a moon until recently.
A new method of predicting satellite orbits could speed up their removal from orbit. The results will be tested next year with the Integral satellite.
The observatory will monitor a billion stars over five years. Already the mission has detected supernovae, extreme binary systems and taken over two million parallax measurements.
These hard to spot galaxies could unlock the mystery of galaxy formation
A study of a galaxy cluster 1.6 billion lightyears away has revealed the re-energising power generated when two of these massive cosmic structures collide with one another.
Magnetic waves oscillating in through the Sun may cause the huge temperatures
Samples of the lunar surface brought back by the Apollo missions initially revealed the remnants of ancient lava eruptions that occurred on the Moon. Now, those same samples are helping scientists learn more about the origins of these so-called 'fire fountains'.
Future space travel will rely on a new relationship between man and machine
There is a discrepancy between current theories as to how the gas giants in our Solar System formed and the time it takes for the accretion of rocky cores to occur. New research may have solved the conundrum.