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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?
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 ...
Isaac Arthur on MSN
How a Newly Found Dwarf Planet Could Rewrite the Solar System
Astronomers have discovered a distant dwarf planet orbiting beyond Neptune — a frozen world so far from the Sun that it ...
Opinion
Space.com on MSNStrange '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?
The official number of exoplanets—planets outside our solar system—tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by scientists from around the world, ...
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Planet 9 could be hiding at the edge of our solar system
Planet 9 may exist 42 billion miles away, influencing objects in the Kuiper Belt, and could be discovered with modern telescopes within a year.
Astronomers have been fascinated after spotting an object earlier this year that came from interstellar space as is now hurtling through our inner solar system. Regardless, it’s an interesting visitor ...
The number of confirmed planets outside of our solar system—known as exoplanets—has risen to 6,000, NASA has said. There is huge variety across these distant worlds, the space agency says, with ...
Space weather isn’t referring to rain clouds that float through the galaxy. Instead, it’s caused by massive explosions of ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. New research suggests that the dwarf planet Makemake is surrounded by faint amounts of methane ...
By Dean Murray A team of astronomers has detected for the first time a growing planet inside a ring. The planet, named WISPIT 2b, is outside our Solar System and ...
At Paris Fashion Week, Chanel's creative director Matthieu Blazy opened the season’s most anticipated debut beneath colossal ...
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