Astronomers May Have Just Discovered Our Sun's Identical Twin

Recent research suggests that most, if not all, stars are born with a binary twin. Our Sun is a solitary star, but there's evidence to suggest that it did have a binary twin, once upon a time and it might have just been found.

NASA's Mars 2020 Rover Will Land in Jezero Crater

Mars 2020 is set to visit the Red Planet to take scientific data and hunt for past signs of life, and to better understand the planet for a future human visit.

Virgin Orbit performs first captive carry flight

Virgin Orbit performed the first captive carry flight of its LauncherOne system Nov. 18. Richard Branson, founder of the Virgin Group, said he expected the first orbital launch to take place in December or January.

Trans-galactic streamers feeding most luminous galaxy in the universe

ALMA data show the most luminous galaxy in the universe has been caught in the act of stripping away nearly half the mass from at least three of its smaller neighbors.

Some good came out of 2018: Astronomy photos

Each year, the Insight competition reminds us of how amazing our Universe is.

SpaceX ties its record for most launches in a year

With Thursday's launch, SpaceX has now flown 18 mission this year, tying its record set in 2017. The company could fly as many as four more rockets this year.

Mysterious supernova explosion

Supernovae happen all the time, but this one was different. "Cow," as astronomers are calling it, was a massively bright explosion 200 million light years away.

Massive impact crater discovered in Greenland

An international team has discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the northern Greenland. This is the first time that a crater of any size has been found under one of Earth.

Gaia data reveals previously unseen ‘ghost’ galaxy near Milky Way

Scientists studying data from the ESA Gaia spacecraft have discovered a previously unknown dwarf galaxy lurking just outside the Milky Way, an extremely low-density swarm of stars two thirds the size of Earth’s galaxy.

Super-Earth found orbiting Barnard’s Star just six light years away

Studying two decades of data on Barnard’s Star, astronomers have found a rocky super-Earth with a mass of at least 2.3 times that of Earth that orbits the star every 233 days or so.

The Milky Way Devoured Another Galaxy 10 Billion Years Ago

More precisely, the Milky Way collided with the second galaxy, absorbing many of its stars and spiraling out a chaotic tangle of stellar matter — birthing new stars and altering the orbits of others.

Scientist finds elusive star with origins close to Big Bang

The discovery of this approximately 13.5 billion-year-old tiny star means more stars with very low mass and very low metal content are likely out there—perhaps even some of the universe's very first stars.

First detailed observations of material orbiting close to a black hole

The novel GRAVITY instrument has discovered clumps of gas swirling around at about 30 per cent of the speed of light on a circular orbit just outside the innermost stable orbit of a four million mass black hole.

NASA’s Dawn mission comes to an end in orbit around Ceres

Dawn was launchd on 27 September 2007. The spacecraft found that asteroid Vesta is the parent of a specific variety of meteorites found on Earth. It also discovered that dwarf planet Ceres was once an ocean world.

Parker Solar Probe Is The Closest Thing We've Ever Sent to the Sun

No human-made object has gotten this close to the Sun. The Parker Solar Probe broke a 22 year old record by getting to within 43 million km of the Sun.