The search for life beyond Earth is a key driver of modern astronomy and planetary science. The U.S. is building multiple ...

NASA has just announced a groundbreaking discovery: 10 new Earth-like planets beyond our solar system that could potentially ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have ...

A new astronomical study suggests that Earth could one day be ejected from the solar system, not by the aging of the Sun, but ...

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

A passing star has been discovered that could cause chaos in the Solar System, sending Earth flying out of orbit.

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

Scientists have discovered a colossal object approximately 435 miles wide in the frigid outer reaches of our solar system, ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

16, 2025 — Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits ... of the most common types of planets outside of our solar system, according to a ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...