Light gases like helium hung around in the gas-and-dust nebula that formed the solar system for only a few million years. "It's very much debated how long it took the Earth to form," Olson said.

NEW YORK — Seven planets grace the sky at the end of February in what’s known as a planetary parade, though some will be difficult to spot with the naked eye. These planetary hangouts happen when ...

Apple’s new ‘age assurance’ system for iPhones ... battle for years over who should take ultimate responsibility for kids downloading and being hurt by social media apps and other age ...

Planets in the solar system. Credit: NASA and ESA / CC BY-SA 4.0 A rare celestial event will unfold on the evening of Friday, Feb. 28, 2025, when seven planets line up in the night sky in a phenomenon ...

Now, using a powerful NASA supercomputer called "Pleiades," scientists have discovered yet another spiral structure on the edge of our solar system. The spiral is composed of billions of icy ...