The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

Far above the South Atlantic, Earth’s magnetic shield is thinning into a vast, lopsided bruise that now sprawls across an area comparable to nearly half of Europe. This weak patch, known as the South ...

Researchers have proposed a theoretical timepiece, dubbed the "CRASH Clock," which tells us how quickly satellites would ...

Often misunderstood as "hovering," satellites are actually in constant free-fall, perpetually missing Earth's surface as the ...

The orbits of the planets around the sun have been the source for many a scientific debate. Their current orbital properties are well understood but the planetary orbits have evolved and changed since ...

Although Europa is the fourth largest of Jupiter’s 95 moons, it’s the smallest of the Galilean moons – the largest being Ganymede. With an equatorial diameter of about 3,100 kilometres, Europa is ...

On Saturday (Jan. 10), for example, we will see three satellites on one side of Jupiter (going outward from the planet: Ganymede, Io and Europa ), while the fourth ( Callisto) remains all by itself on ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...

A powerful solar storm could cripple Earth's satellite infrastructure within days, a new paper warns. Increased satellite ...

Two separate research teams have observed a previously unseen microlensing event, confirming the existence of a particular ...