A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

Astronomers detected a bright signal, coming from deep inside a dust disc, that is likely newborn planet HD 135344B still ...

The growth spurt hints that the free-floating object evolves like a star, providing clues about rogue planets’ mysterious origins.

A recent study introduces the idea of Planet Y, a theoretical world that could explain strange gravitational behavior beyond ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

Due to the lapse in federal government funding, NASA is not updating this website. This animation shows the explosion of a white dwarf, an extremely dense remnant of a star that can no longer burn ...

Scientists have discovered methane gas on the dwarf planet Makemake, a finding that has surprised astronomers studying the outer solar system.

University of Warwick astronomers have uncovered the chemical fingerprint of a frozen, water-rich planetary fragment being consumed by a white dwarf star outside our solar system. In our solar system, ...

A Russian satellite crash landed in a field south west of Moscow earlier this month while carrying some unusual cargo: about 1,500 flies, 75 mice, seeds, a bunch of microbes, and various cell tissues.

Hubble Spots White Dwarf Devouring Icy Pluto-Like Planet 260 Light-Years Away Hubble observations show a white dwarf star shredding and accreting a volatile-rich, Pluto-like body 260 light-years away.