Tag: Astronomy
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Communal stargazing using your phone: The Unistellar eQuinox 2, reviewed
When we reviewed the Unistellar eVscope a couple of years ago, we came away impressed. It offered a communal stargazing experience that takes our ubiquitous smartphones and turns them into a way to view the heavens. Unistellar’s newest offering is the eQuinox 2, a lower-cost alternative to eVscope 2, taking all of the features from…
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DART asteroid impact created a 10,000-kilometer debris field of boulders
NASA’s Double Asteroid Redirect Test (DART) mission was a success from the perspective of planetary defense, as it successfully shifted the orbit of an asteroid. But the mission had a scientific element to it, and we’re still sifting through the debris of the collision to determine what the impact tells us about the asteroid. That’s…
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Something in space has been lighting up every 20 minutes since 1988
On Wednesday, researchers announced the discovery of a new astronomical enigma. The new object, GPM J1839–10, behaves a bit like a pulsar, sending out regular bursts of radio energy. But the physics that drives pulsars means that they’d stop emitting if they slowed down too much, and almost every pulsar we know of blinks at…
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Rover sampling finds organic molecules in water-altered rocks on Mars
Organic chemicals, primarily composed of carbon and hydrogen, underly all of life. They’re also widespread in the Universe, so they can’t be taken as a clear signature of the presence of life. That creates an annoying situation regarding the search for evidence of life on Mars, which clearly has some organic chemicals despite the harsh…
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The Webb telescope just offered a revelatory view of humanity’s distant past
To commemorate the first year of scientific operations by the James Webb Space Telescope, NASA has released a stunning new image of a stellar nursery. The photo is gorgeous. It could easily hang in a museum, as if it were a large canvas painting produced by a collaboration of impressionistic and modern artists. But it…
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SpaceX launches groundbreaking European dark energy mission
A European Space Agency telescope launched Saturday on top of a SpaceX Falcon 9 rocket from Florida to begin a $1.5 billion mission seeking to answer fundamental questions about the unseen forces driving the expansion of the Universe. The Euclid telescope, named for the ancient Greek mathematician, will observe billions of galaxies during its six-year…
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Saturn’s rings steal the show in new image from Webb telescope
The James Webb Space Telescope has observed Saturn for the first time, completing a family portrait of the Solar System’s ringed planets nearly a year after the mission’s first jaw-dropping image release. Webb’s near-infrared camera took the picture of Saturn on June 25. Scientists added orange color to the monochrome picture to produce the image…
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Satellites keep photobombing space images. Astronomers need a fix
Throngs of satellites are streaking across the Hubble Space Telescope’s field of view, leaving what look like scratch marks on space photos and hindering scientists’ work. Teeming swarms of these satellites, which reflect sunlight and mimic astronomical objects, threaten to gradually transform the night sky and affect how astronomy can be done. “We see these…
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Megaplume of water vapor erupting on Enceladus caught by Webb Telescope
Enceladus, a frozen moon orbiting Saturn, has caught the interest of scientists because of the plumes of water vapor that erupt from its icy crust, which are possible evidence for a subsurface ocean. And an ocean means it has the potential for life (at least life as we know it). Now NASA’s James Webb Space…
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As megaconstellations grow, scientists become concerned with their impacts on astronomy
Since their initial launch in 2019, SpaceX’s Starlink internet satellites have become infamous for photobombing observations from ground-based telescopes. While Starlink — along with other satellite “megaconstellations” — has been a primary concern for ground-based telescope observations, a new issue has begun to pop up; the satellites are now occasionally obstructing images from one of…