A graphic with the words "black hole" and "neutron star," with a question mark between them.

LIGO and Virgo find a mystery object in the ‘mass gap’

The science world is buzzing about a new discovery made via the LIGO-Virgo collaboration. It’s a new object found in the so-called “mass gap” between neutron stars and black holes.

Large sphere with dark curved lines, a long thin straight line and smaller darker sphere in front of it, on black background.

Saturn’s large moon Titan is drifting away 100 times faster than anyone knew

Saturn’s largest moon Titan is drifting away from the planet 100 times faster than previously thought, according to a new study from researchers in the U.S., France and Italy.

A rounded field of view, with the sun obscured behind a disk to mask its brightness, and 2 small comets (with short visible tails) moving near the sun.

SOHO’s 4,000th comet

This week, a citizen scientist spotted a never-before-seen comet in data from the sun-observing SOHO spacecraft. It was SOHO’s 4,000th comet discovery. Learn more and watch comets sweep near the sun in this video.

Woman with headphones in cockpit.

Sally Ride: 1st American woman in space

Ride was the 1st American woman to go to space, flying on the STS-7 space shuttle Challenger mission in 1983, and later on another mission in 1984.

Artist's colored drawing of 3 balls, appearing to orbit each other. One ball, the pulsar has jets extending from either pole. Below them, a mesh-like structure indicates the amount of space they each curve.

Dance of 3 stars confirms Einstein’s ‘most fortunate thought’

Researchers in Europe have now confirmed the universality of free fall – which Einstein called his most fortunate thought – with extremely high precision. To do it, they spent 8 years tracking a triple star system containing a millisecond pulsar.

Who was the 1st woman in space?

On June 16, 1963, cosmonaut Valentina Tereshkova launched solo aboard a Soviet Vostok 6 rocket, becoming the first-ever woman in space.

A spacecraft, with what looks like a large camera "eye," with the sun in the background.

ESA’s Solar Orbiter made its 1st close approach to the sun on June 15

Solar Orbiter swept as close as 50 million miles (77 million km) to our sun’s surface. Now scientists are at work testing the spacecraft’s 10 science instruments, including the 6 telescopes on-board. New images, to be released in mid-July, will be the closest of the sun ever captured.

A star field, with one star shifting position.

Wowzer! Pluto spacecraft sees parallax for Proxima

New images from the fringes of our solar system. The fast-moving New Horizons spacecraft sees a parallax shift – a different apparent position against the background stars – for Proxima Centauri.

Where is Proxima Centauri?

You probably know the very nearest star to our sun is Proxima in the triple star system we call Alpha Centauri. Guy Ottewell shows you where in space Proxima is.

Yellow circles and partial rings, blue crescent and thermometer shape on black background.

New exoplanet system is ‘mirror image’ of Earth and sun

Researchers from Germany and the US have discovered an exoplanet less than twice the size of Earth orbiting at about the same distance from its star, making it the closest analog to the Earth-sun system known so far.