Now, researchers suggest these mysteries could point to the existence of an undiscovered Earth-like planet. Decoding the ...

A team of astronomers has uncovered an Earth-like planet orbiting a star located 4,000 light years away from the solar system ...

Astronomers have discovered a rocky Earth-like planet around a white dwarf star, hinting at our planet's future about eight billion years from now.

Exoplanets can be quite different from Earth, but occasionally researchers find one that gives a sneak peak into what the ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Earth was a frozen wasteland. Then, rising CO2 caused a catastrophic thaw, turning Earth into a "slushy" planet.

Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

At the end of the last global ice age, the deep-frozen Earth reached a built-in limit of climate change and thawed into a ...

2024 may be a record-shattering year of intense heat, not just for us humans, but also for our planet. In this very year, we ...

Potentially deadly comets could be spotted many years in advance by following the meteoroid trails they leave near Earth, new ...

A new study posits that our planet's gravity will cause seismic activity on Apophis when it makes its close approach in 2029.

From time to time, when Earth's tectonic plates shift, the planet emits a long, slow belch of carbon dioxide. In a new ...