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Artículos sobre Astronomy

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The stark landscape of the Moon as viewed by the Apollo 12 astronauts on their return to Earth. NASA / The Planetary Society

Scientists suspect there’s ice hiding on the Moon, and a host of missions from the US and beyond are searching for it

Some dark craters on the Moon are never exposed to light − ice could be hiding in these permanently shadowed regions, and India’s Chandrayaan-3 mission marked a big step toward finding it.
Artists impression of what WASP-17b could look like, based on. data gathered by Mid-Infrared Instrument (MIRI) and other ground- and space-based telescopes, including the Hubble and Spitzer space telescopes. NASA, ESA, CSA, Ralf Crawford (STScI)

Clouds of quartz detected high in a distant planet’s atmosphere – here’s what this tells us about other worlds

The atmosphere is a reflection of extreme conditions on the super-heated planet.
Astronomers can estimate ages for stars outside the Solar System, but not planets. Corbis Historical via Getty Images

How do astronomers know the age of the planets and stars?

Measuring the ages of planets and stars is tricky. An observational astrophysicist describes the subtle clues that provide good estimates for how old different space objects are.
NASA’s UAP study team and newly appointed director of UAP research represent growing efforts to study and declassify UFO-related data. AP Photo/Terry Renn

NASA report finds no evidence that UFOs are extraterrestrial

Months after a military officer made sensational claims about unexplained objects in the skies, NASA released a report loosely outlining a scientific approach for analyzing UAP reports.

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