In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic.
Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.
Astronomy on MSN
Why don't planets fall into the stars they orbit?
Why don't planets fall into the stars they orbit if they're constantly being pulled by gravity?Lindsey CoughterRocky Mount, ...
This artist’s impression shows a sunset seen from the super-Earth Gliese 667 Cc. Astronomers have estimated that there are tens of billions of such rocky worlds orbiting faint red dwarf stars in the ...
The space rock, known as "2026 AJ" and 40 feet in diameter, is hurtling toward our planet at around 20,500 miles per hour.
The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...
New simulations show Mars plays a key role in shaping Earth’s long-term climate by influencing its orbit and axial tilt over hundreds of thousands to millions of years.
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