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Which planets are the youngest and oldest in our solar system?
There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?
A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
Space.com on MSNOpinion
Strange 'puffy' alien world breaks every rule for how planets should behave
A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?
Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...
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 ...
From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...
Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...
"It shows that Makemake is not an inactive remnant of the outer solar system, but a dynamic body where methane ice is still ...
Amazon S3 on MSN
Outer Solar System Planets Spinning in New Hubble Footage
The Hubble Space Telescope captured footage of Jupiter, Saturn, Uranus and Neptune in 2021. See them spin in this time-lapse. Credit: SCIENCE: NASA, ESA, Amy Simon (NASA-GSFC), Michael H. Wong (UC ...
A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...
In the hunt for extraterrestrial life, we usually look for planets orbiting sun-like stars and icy moons. But there is ...
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