Space

Astronomers have discovered a star known as S5-HVS1, travelling at an incredible 6 million km/h (3.7 million mph). That not only makes it the fastest known star, but it’s fast enough to fling it right out of the galaxy.

The Mars 2020 rover will be touching down in Jezero Crater and now there’s more evidence this was a good choice. Two new studies have found that the landing site is rich in minerals that could preserve fossils of ancient microbes and other lifeforms.

For the first time, atmospheric chemistry and 3D climate modeling have been combined in a way that could help identify planets beyond our solar system which could host life.

Central to SpaceX's mission of making rocket launches as cheap as possible is recovering and recycling as many components as possible, and it today took another significant step toward this aim, flying a recovered payload fairing for the first time.

Engineers have mated the fourth and final Space Shuttle-era engine to the core stage of NASA’s first Space Launch System Moon rocket. NASA hopes to use the super heavy launch vehicle to return astronauts to the Moon before striking out for Mars.

Scientists generally agree that the universe is expanding, but how fast is up for debate. Now, astrophysicists have come up with a new figure for the Hubble Constant by studying how gamma rays interact with the background radiation of the universe.

As NASA scientists finalized their plans for the New Horizons mission in the mid 2000s, the US had already sent space probes to all of our neighboring planets between Mercury and Neptune. But dangling at very edge of the solar system was a dark and icy carrot named Pluto, the final item on a bucket list of planetary exploration.

On August 20, an x-ray instrument on the ISS caught a bright x-ray burst from a pulsar thousands of light-years away, which released as much energy in 20 seconds as the Sun does in 10 days. Now a NASA team has outlined what they believe caused it.

Boeing has found the cause of the parachute failure that occurred during the recent successful launch pad abort test of the CST-100 Starliner. The company said that the failure of one of the parachutes was due to a faulty connection.

NASA has released an enormous mosaic of the southern sky, stitched together from images captured by the agency’s Transiting Exoplanet Survey Satellite (TESS) over the course of its first year of science observations.

ESA scientists are experimenting with growing blood vessels in the weightlessness of space. Based on the Spheroids experiment on the ISS, researchers found that blood vessel cells organize themselves in a way similar to that of cells inside the body.

Samples returned to Earth during the Apollo missions quickly offered scientists new insights into the makeup of our Moon. NASA has now cracked open the first of two untouched lunar samples to see what they look like under the microscopes of today.