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572 notícias encontradas para "astro"
Foto: Greg Goebel / Pexels
The square kilometer array will revolutionize the hunt for alien life
With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we have the potential to see (or in some cases, listen) farther and more clearly than ever before. That is certainly the case for the new Square Kilometer Arr
Admin Recifes 15/07/2026 2
How an interstellar comet sheds light on universe's 'cosmic noon'
How an interstellar comet sheds light on universe's 'cosmic noon'
Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned out to be a comet, 3I/Atlas, and it provoked interest from astronomers and astrophysicists eager for insights into galaxies far, far away. Detailed observa
Admin Recifes 15/07/2026 2
Foto: Luis Felipe Alburquerque Briganti / Pexels
JWST finds the most distant barred galaxy candidate in the early universe
Astronomers using the James Webb Space Telescope have identified what may be the most distant barred spiral galaxy ever discovered, dating to a time less than 1.2 billion years after the Big Bang. The paper outlining its properties was posted to the arXiv preprint server on June
Admin Recifes 15/07/2026 2
Foto: Del Woodcock / Pexels
Galaxy mergers aren't always obvious
The galaxy Centaurus A is about 11 million light-years away and is the fifth-brightest galaxy in the sky. Because it's so bright, it's been studied extensively by amateur and professional astronomers alike. Also called NGC 5128, it's a starburst galaxy, meaning it's forming stars
Admin Recifes 15/07/2026 2
Foto: Radoslaw Sikorski / Pexels
JWST's 'overmassive' early black holes may not be so massive after all
Astronomers studying a population of unusually X-ray-silent and overmassive black holes discovered by the James Webb Space Telescope have found that they may not be as massive as they appear. The new paper, outlining a plausible scenario that would produce such black holes, was p
Admin Recifes 15/07/2026 2
Astronomers dig deep to find tiny dangerous space debris
Astronomers dig deep to find tiny dangerous space debris
In a new study, published in the Journal of the Astronautical Sciences, Warwick researchers led an international effort to uncover some of the faintest debris in geosynchronous orbit ever observed, finding fragments as small as 5 centimeters (2 inches) and obtaining valuable data
Admin Recifes 15/07/2026 2
Artemis II astronauts reunite with their moonship 3 months after record-breaking flight
The Artemis II astronauts reunited with their capsule Wednesday three months after flying around the moon and traveling deeper into space than anyone in history.
Admin Recifes 15/07/2026 2
These ancient quasars shouldn't exist so soon after the Big Bang
Astronomers have uncovered 31 of the oldest known quasars, including the two earliest ever detected, shining from a time when the universe was only about 670 million years old. Powered by supermassive black holes billions of times the Sun’s mass, these incredibly bright objects c
Admin Recifes 15/07/2026 2
The galaxy’s coldest “stars” may actually be alien megastructures
Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien megastructures: a Dyson sphere. The study finds that red dwarfs and white dwarfs are the most promising stars to examine, since advanced civilizations could potentially
Admin Recifes 15/07/2026 2
Astronomers reveal how clouds shape the hidden interiors of the galaxy's most common plane
Astronomers reveal how clouds shape the hidden interiors of the galaxy's most common plane
Sub-Neptunes are the most common type of planet in our galaxy. Bigger than Earth but smaller than Neptune, these worlds remain deeply mysterious because scientists still do not know what they are made of. What astronomers really want to figure out is their interior composition. T
Admin Recifes 15/07/2026 2
Foto: Zelch Csaba / Pexels
Warm Jupiter exoplanet transiting a sun-like star discovered
An international team of astronomers reports the discovery of a new exoplanet orbiting a sunlike star as part of the Next Generation Transit Survey (NGTS). The newfound alien world, designated NGTS-39 b, is a Jupiter-sized planet with an equilibrium temperature of about 519 K. Th
Admin Recifes 15/07/2026 2
To ancient astronomers, Theta Eridani was brighter for 1,000 years—now we know why
To ancient astronomers, Theta Eridani was brighter for 1,000 years—now we know why
There's a bit of a historical mystery surrounding the star Theta Eridani. Ptolemy in the second century A.D. and al-Sufi in A.D. 964 both recorded Theta Eridani as one of the 13 brightest stars in the sky. Hipparchus may have said the same. But there's a problem. For it to be one
Admin Recifes 15/07/2026 2
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