Scientists discover an ultra-light and super-fast sub-Earth exoplanet
The exoplanet GJ 367b orbits its star in an extremely short time.
Only 8 hours, then a year has passed on this planet.
We...
Scientists find a planet the size of Mars but with the makeup of Mercury
Ultra-short-period planets are small, compact worlds that whip around their stars at close range, completing an orbit — and a single, scorching year —...
Meteorites help scientists figure out how solar system formed
Ever since scientists started looking at meteorites with microscopes, they’ve been puzzled—and fascinated—by what’s inside.
Most meteorites are made of tiny beads of glass that...
Scientists find a strangely massive black hole in Milky Way satellite galaxy
Astronomers at The University of Texas at Austin’s McDonald Observatory have discovered an unusually massive black hole at the heart of one of the...
This large comet was active long before we thought, show study
A new study shows that comet Bernardinelli-Bernstein (BB), the largest comet ever discovered, was active long before previously thought.
This means that the ice within...
Scientists find closest pair of supermassive black holes to Earth ever observed
Astronomers have revealed the closest pair of supermassive black holes to Earth ever observed.
The two objects also have a much smaller separation than any...
Sun is a surprising likely source of the Earth’s water, shows study
Curtin University researchers have helped unravel the enduring mystery of the origins of the Earth’s water, finding the Sun to be a surprising likely...
How did the Earth and moon form?
The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun.
It grew larger thanks to...
Astronomers find a planet that orbits its star in just 16 hours!
Mercury is the speed champion in our Solar System.
It orbits the Sun every 88 days, and its average speed is 47 km/s.
Its average distance...
Fragile orbits limit late arrival of water on this seven exoplanets system
Seven Earth-sized planets orbit the star TRAPPIST-1 in near-perfect harmony.
Scientists have used that harmony to determine how much physical abuse the planets could have...