
Astronomers Spot Most Distant Supernova Ever Seen
Light from the powerful cosmic explosion took 10.5 billion years to reach Earth
Light from the powerful cosmic explosion took 10.5 billion years to reach Earth
The launch also marked the company’s first attempt to recover and reuse the fairing of its Falcon 9 rocket
The mysterious object could be the first moon found beyond our solar system—or something else entirely
Nearly 100 worlds are the latest catch from the hardy space telescope
Despite decades of Red Planet exploration, the protocols for confirming evidence of life there are still quite hazy
New observations of a supermassive black hole in a faraway galaxy hint that planets are plentiful throughout the universe
Crewed flights of the Dragon spacecraft and preparations for the Big Falcon Rocket are on the agenda
Whether a success or a failure, the first test flight of the world's current most powerful rocket guarantees fireworks
If successful, the rocket’s first test flight will include three boosters flying back to Earth
After more than a decade of activity, the Google Lunar XPRIZE is concluding—but the race to the moon continues
The space agency’s Kilopower project could end a half-century hiatus for U.S. reactors in space
Scientists are plotting new directions in the quest for cosmic company
Rumors swirl around whether or not a mysterious spacecraft successfully entered and began operations in low Earth orbit
Crystalline growth, rather than biotic processes, are the likely explanation for strange Martian minerals glimpsed by NASA’s Curiosity rover
Even so, the strange saga of Tabby’s Star is far from over
The probe’s 2019 encounter with the icy object 2014 MU69 could reveal multiple lunar companions
New study shows that meteorites rather than terrestrial ore were the sources of Bronze-Age iron
Ancient, buried hydrothermal systems are ideal sites to search for Martian fossils
The Neptune-mass planet GJ 436b has a comet-like tail and a bizarre orbit that takes it over the poles of its star
The bizarre object is emitting no obvious radio signals, but observations and analyses have just begun
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