Vintage NASA satellite falls to Earth, meets fiery doom after 56 years in space By Meghan Bartels A long-retired NASA satellite burned up in Earth's atmosphere over the weekend, the agency has confirmed.
The sun may have a long-lost twin By Rafi Letzter There's a strange sphere of mass at the outer reaches of solar space. Did another star help put it there?
US spy satellite launch delayed a week after abort in final seconds By Tariq Malik A U.S. spy satellite launch on a Delta IV Heavy rocket was delayed a week after a last-minute abort Saturday (Aug. 29).
How long is a galactic year? By Grant Currin Just as Earth orbits the sun, our sun orbits the galaxy.
Black hole 'hair' could be detected using ripples in space-time By Paul Sutter Hair may record the information swallowed by the gravitational monsters.
Could the universe collapse into a singularity? New study explains how. By Paul Sutter All you need is some string.
The end of the universe may be marked by 'black dwarf supernova' explosions By Mara Johnson-Groh A spectacular fireworks show will light up an otherwise pitch black universe.
Clouds of star-forming gas are being shot 'like bullets' across the galaxy By Brandon Specktor Two clouds of cold-star forming gas are sailing on the Milky Way's hot nuclear wind, and nobody can explain why.
Rainbow meteorite discovered in Costa Rica may hold building blocks of life By Rafi Letzter A small, soft smacked into Costa Rica on April 23, 2019. And it carried dust older than our sun, as well as clues regarding how life formed on Earth.
How Earth's gravity changed record-breaking asteroid's path forever By Mike Wall Though 2020 QG survived its recent encounter with Earth, the rock's path through space was altered significantly.
Watch SpaceX boat catch falling payload fairing in giant net (video) By Mike Wall SpaceX just plucked another payload fairing out of the sky, and you can see video of the dramatic cosmic catch.
Interstellar visitor 'Oumuamua could still be alien technology, new study hints By Rafi Letzter The idea that interstellar object 'Oumuamua is a hydrogen iceberg has a flaw.
A car-sized asteroid made the closest Earth flyby a space rock has ever survived By Chelsea Gohd A newly discovered car-sized asteroid just made the closest-known flyby to Earth without hitting our planet.
What does the Pentagon's new UFO task force mean? Experts weigh in. By Leonard David The Pentagon just announced the creation of a task force to analyze and understand the "nature and origins" of UFOs. Here's what the much-hyped news means.
NASA powers up Mars Ingenuity helicopter for the 1st time By Samantha Mathewson NASA powered up its Mars helicopter Ingenuity for the first time on Aug. 7 and tested the little craft's electronics.
Astronomers bounced a laser off a spacecraft whirling around the moon By Rafi Letzter Astronomers have bounced lasers of mirrors left by Apollo astronauts on the lunar surface for decades. But this is the first time bouncing one off a lunar orbiter — after a decade of trying.
Entire cities could fit inside the moon's monstrous lava tubes By Rafi Letzter Vast lava tubes pock the surface of the moon and Mars, and could protect explorers from the elements. But first someone needs to explore them.
Scientists probe the weird, alien water inside of Uranus and Neptune By Chelsea Gohd Researchers are investigating an alien version of water inside the strange, icy interiors of Uranus and Neptune.
Famous alien-hunting telescope slashed to pieces in mysterious midnight accident By Brandon Specktor Puerto Rico's famous alien-hunting telescope called the Arecibo Observatory took massive damage after a cable snapped in the dead of night.
NASA to stop using racist nicknames for cosmic objects By Doris Elin Salazar NASA will discontinue the use of certain nicknames for astronomical objects that are considered to be racist, the space agency said Aug. 5.
