New evidence suggests the culprit for the cosmic assault presented by cosmic rays may be the shock waves from exploding stars.
Space News & Blog Articles
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Why Betelgeuse Dimmed
Betelgeuse, the big reddish star that is the second brightest point in the constellation Orion (after Rigel), has been puzzling astronomers for years. Starting in October 2019, Belegeuse began to dim considerably, eventually reaching 1/3rd of its normal brightness a few months later. And then, just as mysteriously, it began to brighten again and (as of February 2022) has remained in a normal brightness range. The most likely reason appeared to be a circumstellar dust cloud rather than any changes in the star’s intrinsic brightness.
Live coverage: Falcon 9 rocket counting down to liftoff from California today
Live coverage of the countdown and launch of a Falcon 9 rocket from Vandenberg Space Force Base in California with 46 Starlink internet satellites. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
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Rocket Lab plans another helicopter catch later this year
The company says data so far from May's first epic helicopter snatch shows a lot of success, even though they let it go into the water.
SpaceX preps 46 more Starlink satellites for launch into polar orbit
A view of 46 flat-packed Starlink satellites in orbit following a launch in July. Credit: SpaceX
SpaceX plans to launch a Falcon 9 rocket with 46 Starlink internet satellites into polar orbit Friday from Vandenberg Space Force Base in California, continuing deployment of the company’s commercial broadband network.
Thanks to Gaia we Know Exactly how and When the Sun Will die
Our Sun is doomed. Billions of years from now, the Sun will deplete its hydrogen fuel and swell to a red giant before becoming a white dwarf. It’s a well-known story, and one astronomers have understood for decades. Now, thanks to the latest data from Gaia, we know the Sun’s future in much greater detail.
Enormous sinkhole wide enough to swallow the White House opens in Chile
A massive sinkhole measuring more than 100 feet across has opened on mining land in Chile, according to the government's geology mining service.
Remembering Donald Machholz, 1952 - 2022
Sky & Telescope honors the life of Donald Machholz, one of the premier comet-hunters of his time.
NASA satellite captures Sahara Desert dust plume over the Atlantic Ocean
NASA's Aqua satellite photographed plumes of dust being drawn from Africa's Sahara Desert and sent across the Atlantic towards the United States and the Caribbean.
How to watch NASA's Artemis 1 moon mission briefings and megarocket rollout next week
You can learn about NASA's Artemis 1 moon mission science and watch its SLS megarocket roll to the launch pad in webcasts next week.
Sending Astronauts to Venus
Crazy as it might seem, it’s a logical and thrilling prospect.
New rules needed to fix growing space debris problem, FCC says
The FCC opened a new inquiry Aug. 5 focusing on how space manufacturing may help the fight against space debris — or hinder it.
Watch live: VP Kamala Harris discusses commercial space progress
Tune in live as U.S. Vice President Kamala Harris, also the chair of the National Space Council, gives a speech on the commercial space sector today at 4:35 p.m. EDT (2035 GMT).
'Bouncing' universe theory still can't explain what came first
New research highlights a troubling problem with the concept of a cyclical universe that experiences infinite expansion and contraction, known as 'bouncing universe' models.
'Gigantic jet' that shot into space may be the most powerful lightning bolt ever detected
Scientists detected the most powerful gigantic jet lightning bolt — a lightning bolt that shoots up out of a cloud into the ionosphere — ever.
Starlink Satellites Are Still Bright
The new generation of Starlink satellites remain above the accepted brightness threshold.
Sturgeon supermoon stuns viewers around the world (photos)
The last of four supermoons in a row rose Aug. 11, 2022 and generated gorgeous pictures.
'Strange New Worlds' is officially the most watched Star Trek show on Paramount Plus
The "Star Trek" spinoff "Strange New Worlds" is the most watched Trek series on the streaming service Paramount Plus.
A month on 'Mars': First journeys
The Month on Mars expedition begins its fieldwork listening to some of the earliest radio frequency signals in the universe.
The James Webb Space Telescope will study countless planets. Here's your chance to name one.
Uninspired by the dull scientific numbering of exoplanets? Well, here's your chance to name an alien world and its host star by connecting them to human cultures.
