Earth, Moon and asteroid

Earth’s Mini-Moon Mystery Solved: It’s a Chunk of the Moon
For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit around the Sun, temporarily caught by Earth’s gravity to become a far away mini-moon. A closer look at the space rock reveals a rather familiar origin: Earth’s mini-moon might actually be a broken-off piece of our regular Moon.
Earth's recent asteroid visitor might've been a piece of the moon
2024 PT5 is the second near-Earth asteroid scientists suspect was ejected from the moon's surface, the first being 469219 Kamo'oalewa, which a different team of scientists have traced to an old impact crater on the far side of the moon.
Study finds that Earth's small asteroid visitor is likely a chunk of moon rock
A near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new insights to asteroid and lunar science.
Earth’s Mini-Moon Was Probably a Piece of Its Real Moon
Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.
NASA: Near-Earth Asteroid Likely Came from the Moon
Last year, astronomers on the hunt for potentially dangerous near-Earth asteroids spotted something unusual. A space rock, now dubbed 2024 PT5 made several close passes by Earth, not quite orbiting our planet,

Earth, North Pole and Siberia

Firefly’s Lunar Lander Captures Haunting Earth Eclipse From Space
On January 18, the team at Firefly carried out Blue Ghost’s first engine burn, firing up the lander’s thrusters and main ...
A private US spacecraft headed to the moon captures a glorious view of Earth
CAPE CANAVERAL, Fla. -- A private U.S. spacecraft bound for the moon has captured stunning images of Earth one week into its ...
Scientific American1d
Earth Sings with Mysterious Chorus Waves—And Deep Space Does, Too
Peculiar bursts of energy called chorus waves have been detected in deep space far from our planet, suggesting they could ...
New Scientist5h
Carbon removal schemes on farms could change Earth’s reflectivity
Carbon removal schemes involving enhanced rock weathering should consider whether the rocks they use are lighter or darker ...
Mysterious 'Supercontinents' Inside Earth Challenge Mantle Theory
These ancient buried "super-continents"—known to scientists as large low-seismic-velocity provinces (LLSVPs)—were found ...
Where in the world are Earth’s oldest dinosaurs?
To account for the numerous gaps in the fossil record, they treated the parts of the world where fossils have not been ...
New Scientist on MSN2d
Towering structures in Earth’s depths may be billions of years old
New measurements suggest mysterious continent-sized masses in our planet’s lower mantle may be extremely stable features ...
MIT Technology Review2d
A new company plans to use Earth as a chemical reactor
Ammonia, used in fertilizer, is essential to our lives. Addis Energy is trying to make the chemical underground.
Nevada’s Lithium Could Help Save the Earth. But What Happens to Nevada?
Many climate experts see its deserts as a place to build the green-energy future. For two local activists, the price is too ...