Over 4.6 billion years ago, the early Earth emerged from a swirling disk of gas and dust encircling the young sun. This ...

Just as some children physically resemble their parents, many scientists have long thought that developing planets should resemble the swirling disk of gas and dust that births them. But ...

Just as some children physically resemble their parents, many scientists have long thought that developing planets should resemble the swirling disk of gas and dust that births them. But ...

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form.

The solar system as we know it began life as a vast, swirling cloud of gas and dust, twisting through the universe without direction or form ... The 0.1% of matter that remained orbited around the Sun ...

Dust cloud is thought to be the first debris disk to be seen around a planetary nebula. The planetary nebula WeSb 1 ...