Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

Science Rare photo said to capture all planets including Earth at once — for the first time ever: ‘Very tricky’ By David Landsel Published Feb. 26, 2025, 8:28 p.m. ET ...

Missed the ‘Parade of Planets’? These Upcoming Alignments Will Likely Be Better, Anyway Astronomers tempered expectations of the celestial event this week, pointing to others in the near ...

Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same time, challenging current models of our solar system’s evolution.