Our Milky Way galaxy appears to have flipped 90 degrees long ago. But why?
Our Milky Way galaxy appears to have flipped 90 degrees long ago. But why?

A slowly rotating stellar halo was the clue to a major and unknown event in the Milky Way’s history that saw the spiral disc flip over by more than 90 degrees.

BALLS on the moon: China set to launch Africa’s 1st lunar science mission in 2029
BALLS on the moon: China set to launch Africa’s 1st lunar science mission in 2029

Africa’s first space exploration mission aims to send a trio of spherical probes to the lunar south pole aboard China’s Chang’e 8 lander in 2029.

Betelgeuse, Betelgeuse! Astronomers capture clearest image yet of famous star’s elusive companion
Betelgeuse, Betelgeuse! Astronomers capture clearest image yet of famous star’s elusive companion

“These are among the best moments in science: seeing something new, unexpected.”

X-ray spacecraft finds supermassive black hole stirring up the ‘red potato’ galaxy: ‘There may be a cook in this cosmic kitchen’
X-ray spacecraft finds supermassive black hole stirring up the ‘red potato’ galaxy: ‘There may be a cook in this cosmic kitchen’

Using the Chandra X-ray spacecraft, astronomers have seen a jet from a feeding supermassive black hole churning gas surrounding a galaxy nicknamed the “red potato.”

A seed that flew around the moon grew into this tree in NYC
A seed that flew around the moon grew into this tree in NYC

The Madison Square Park Conservancy unveiled its moon tree at a smoky birthday party.

An off-the-shelf camera could help us find more black holes smashing together
An off-the-shelf camera could help us find more black holes smashing together

“It doesn’t require any new technology development, which is almost unheard of for solving a LIGO instrumentation problem.”

What lurks beneath the volcanoes of Jupiter’s moon Io? NASA’s Juno probe just took a peek

The subsurface findings could transform how scientists study volcanoes across the solar system — including those on Earth.

This Week In Space LIVE: The Viking Mars landings 50 years later

Tune in today, July 24, at 1:30 p.m. ET for a LIVE This Week In Space taping to mark the 50th anniversary of the Viking landings on Mars.

The first possible exomoon is here, and it makes our Moon look hilariously tiny

Astronomers have found strong evidence for a Jupiter-mass object orbiting a brown dwarf, potentially marking the first convincing detection of a moon beyond our solar system.