The Universe

The observatory is expected to map around 100,000 galaxy clusters—the largest known gravitationally bound structures in the universe—and three million supermassive black holes.

The black hole is located at the center of the spiral galaxy NGC 3147 around 130 million light-years away from Earth.

Einstein's general theory of relativity beautifully describes the nature of gravity and its effect on large objects in the universe. However, there are alternative explanations.

Astronomers have measured the spin rate of five, distant supermassive black holes for a study published in the Astrophysical Journal.

Our universe is made up of three spatial dimensions—width, depth and height—as well as the additional dimension of time.

The Teegarden star—a red dwarf with a mass less than a tenth that of the sun—is located just 12.5 light-years away in the constellation Aries.

Before its mission ended in September 2017, NASA's Cassini probe conducted a series of dives between Saturn's cloud tops and its rings.

Gamma-ray bursts are some of the most extreme events in the universe, producing vast jets of powerful radiation that can be detected billions of light-years from their source.

The ocean is thought to be be billions of years old and may contain as much as three times the volume of all the liquid water on Earth.

Build-ups of toxic gases in the atmospheres of many exoplanets in the "habitable zone" could limit the "safe zone" in which life outside our solar system could actually exist.

The findings expand our knowledge of black holes and the galaxies within which they are often found.

Messier 90 belongs to a vast collection of more than 1,200 galaxies known as the Virgo Cluster, which has a diameter of 15 million light-years.

There are three different physical processes responsible for accelerating particles to vast speeds.

"We usually think of spiral galaxies as being quite flat."

The origin of this rarely observed ultra-high-energy phenomenon has puzzled scientists for decades.

Astronomers have spotted a black hole spewing out vast amounts of incredibly cold gas.

Researchers say they have detected remnants of a universe that existed before our own.

The image features around 15,000 galaxies, the oldest of which dates back to 11 billion years ago.

The hungry star, known as RW Aur A, is located around 450 light-years from Earth.

The study has proved the theory holds beyond the Milky Way.

Our sun will die in about 10 billion years' time.

Helium is the second most common element in the universe, but more than a decade of searching for the gas in the atmospheres of exoplanets has proven unsuccessful, until now.

Astronomers previously thought these events only occurred around 3 billion years after the Big Bang, but they were happening when the universe was only half that age.

The Galactic Archaeology survey was launched in a bid to provide new insights into the formation and evolution of the Milky Way.

Tour is based on data collected by NASA's Lunar Reconnaissance Orbiter.

The discs contain gas, dust and even young planets that are still in the process of forming as the building blocks of planetary systems.

The pictures have helped researchers to identify an elusive object, known as an isolated neutron star, outside our own galaxy for the first time.

The strange events were identified by a project set up to investigate dark energy, an unexplained force that scientists think is accelerating the universe's expansion.

Cosmic voids are gaps left behind during the universe's billions of years of expansion.

When massive stars come to the end of their life cycles, they self-destruct in a cataclysmic final explosion.