Live Science on MSN
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?
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 ...
TwistedSifter on MSN
Prominent Astronomer Avi Loeb Proposes That An Interstellar Object Entering Our Solar System May Be A Spacecraft Powered By Nuclear Energy
While Loeb is known for making some controversial claims and predictions in the past, he is still a very respected astronomer ...
22d
3I/ATLAS, comet hurtling toward solar system, much bigger than previously thought, astronomers say
The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...
Using JWST and ALMA data, astronomers have spotted a superlong and narrow 'galactic contrail,' possibly produced by a black ...
A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
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