These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative stages and played a critical role in planetary formation.

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star. This technique can ...

Look up this week for February’s full snow moon and to catch the last glimpse of a visible parade of planets in the night sky ...

Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may not be the full picture.

The James Webb Space Telescope has captured a belching protostar in its infancy. By studying the dust grains whirling around ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

People will be able to see a rare sight at the end of this month when all seven other planets in our solar system line up in the night sky. For the last few weeks six of the planets have been ...

In May 2024, an epic solar storm rattled Earth so powerfully that its effects were felt even at the bottom of the ocean.

The planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and ...

HH 30 is a luminous region surrounding a newborn star, or protostar. The James Webb Space Telescope helped reveals unprecedented details of it.