Latest about earth
How many satellites orbit Earth?
The number of satellites orbiting our planet is rising fast, thanks to private "megaconstellations" that pose various threats to space exploration and astronomy. But how big has the problem already become?
The US isn't prepared for a big solar storm, exercise finds
A first-of a-kind space weather "tabletop" exercise has revealed major weaknesses in America's preparedness for major solar storms.
Could a planet really develop a brain?
"My contention is that Earth may, if we are lucky and diligent and clever enough, grow an emergent superconsciousness."
NASA Mars satellite uncovers markings 'like paint dripping down a wall' on Martian surface
Wave-like soil patterns on the Martian surface match those found in Earth's cold, mountain regions, which could help scientists better understand the Red Planet's climate history and search for signs of life.
Do other planets have seasons?
Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?
Planet Nine candidate detected deep in our solar system
Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the new findings were met with some skepticism.
Jupiter: Facts about the biggest planet in our solar system
Discover interesting facts about Jupiter, its many moons, and whether the gas giant and its moons could host extraterrestrial life
Mars: Facts about the Red Planet, its moons, and possibilities for life
Discover interesting facts about Mars, its moons, its atmosphere, and the possibilities of life.
4 tiny, Earth-like planets found circling 2nd-closest star system to us — and could be visited by future human generations
A quartet of small, rocky exoplanets likely circle Barnard's Star, around 6 light-years from Earth, putting them in contention as targets of missions for future human generations.
