Live Science on MSN
'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'
A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...
Green Matters on MSN
Has NASA Found Another Earth-Like Planet?
Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...
The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.
The newborn planetary system appears to be emerging 1,300 light-years away around a baby star known as HOPS-315. Planet-forming materials were first identified using NASA's James Webb Space Telescope.
Researchers discover hidden solar tornadoes that can disrupt Earth's systems - revealing why current space weather warnings ...
a bubble of plasma that flows outward from the sun and envelops the solar system. Like wind on Earth, the solar wind blows in ...
Millions of years before blue oceans and wandering continents, the Earth in its early days was a molten, tumultuous planet — ...
When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...
A discovery in V883 Orionis' planet-forming disk suggests Earth's water could have come from ancient interstellar ice that ...
About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.
Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...
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