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The European Space Agency’s Euclid space telescope has discovered 31 of the most ancient quasars ever found. Two of these giant and dazzling galaxy cores, powered by gargantuan black holes, are the earliest quasars yet observed in cosmic history. They shone with the light of a trillion suns when the universe was 670 million years old—just 5% of its current age.
Where would you go to watch a star being born? Probably not the heart of the Milky Way, which is about the most violent neighborhood our galaxy has to offer, a maelstrom of gas churning so fast and so chaotically that you would think nothing could ever settle there long enough to collapse into a star. And yet stars do form in that turmoil, and astronomers have just begun to work out how by finding an unexpected pocket of calm in the chaos.
Comets have played an interesting role in the history of astronomy. Since antiquity, many cultures saw them as omens or spirits, portending good or bad news for kings, queens and emperors. Over the past few hundred years, however, astronomers have studied them intently to understand the science behind these visitors to the inner solar system. Today, we know that these ghostly apparitions in the sky are dirty balls of ice and rock blasting through space, scattering dust and gases as they go.
Dust devils are a regular feature on Mars. Just like those found on Earth, these mini whirlwinds form when parts of Mars are warmed by the sun, causing air above the surface to swirl upward and carry dust with it. But in Mars’ lower gravity (38% that of Earth), these devils grow much larger, reaching up to 8 km (5 miles) in height and speeds of up to 45 meters per second (150 feet per second). They are also a major part of Mars’ meteorological cycles, playing a key role in distributing dust across the planet.
An international team led by Stefanie Komossa from the Max Planck Institute for Radio Astronomy (MPIfR) in Bonn has studied a galaxy that has been shining exceptionally brightly in the radio regime for more than eight years. Although it is only 1.8 billion light-years away from us, the central black hole in the galaxy exhibits properties typical of the early universe. New observations and archival data suggest that, for several years now, more matter has been falling into the black hole, triggering a high-energy particle jet. The discovery enables researchers to better understand the formation of jets and the growth of black holes in the early universe.
A Japanese space probe performed a flyby of a near-Earth asteroid on Sunday in a test mission for technology that could help protect the planet from space rocks.
Henry Eugene Washington was charged with murder in the shooting that resulted in the death of Officer Jonathan Shoop in July 2020
Deputy Steve Henriksen resigned from the Swift County Sheriff’s Office, but didn’t want to be separated from Red, a K-9 that had been assigned to him for more than four years
Magnetic storage devices, like a computer’s hard disk drive, utilize magnets to represent binary data. However, as these devices are downsized, stray magnetic fields generated by individual magnetic components can interact with neighboring elements to cause operational malfunctions, limiting how much data we can densely pack into memory devices.
Astronomers have uncovered a pair of giant planets that are lighter than cotton candy—super-puffs the size of Jupiter.
The 1.7 million satellites that companies are aiming to launch into Earth’s orbit in the coming years will have “devastating consequences for astronomy,” new research warned Wednesday.
A German-Japanese research team involving the University of Augsburg has made a significant breakthrough in the use of antiferromagnets. For the first time, the team has succeeded in writing magnetic information using only ultrashort laser pulses—without the need for electric currents or magnetic fields.
Astronomers have spotted many “red and dead” galaxies in the early universe. These are massive systems that stopped forming stars surprisingly early in cosmic history. Now, they may have found evidence of one in the act of becoming dead: a massive galaxy being stripped of its star-forming gas just 1.4 billion years after the Big Bang. The clues behind why it lost its star-forming material are detailed in a paper posted to the arXiv preprint server on June 16.
NOPD recorded 38 murders through June 25, representing one of the lowest year-to-date totals the city has seen in decades
The man threw the concrete pieces as LAPD officers responded to a medical emergency
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