A Tibetan cosmic-ray observatory has discovered high-energy particle accelerators within our galaxy. The post Tibet Observatory Confirms Existence of Galactic PeVatrons appeared first on Sky & Telescope.
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This Week’s Sky at a Glance, April 2 – 10
Winter stars in the west are giving way to spring stars in the east, while little Mars shines on. Meanwhile, the waning Moon passes under Jupiter and Saturn at dawn. The post This Week's Sky at a Glance, April 2 – 10 appeared first on Sky & Telescope.
Read MoreCakes, Cats, and Stars — Astro April Fools
Astronomers turn their attention to the true puzzles of the universe: cats, Jaffa Cakes, and the coming planet–black hole apocalypse. The post Cakes, Cats, and Stars — Astro April Fools appeared first on Sky & Telescope.
Read MoreApril: Follow the Moon
To learn “what’s up” at night during April, download Sky Tour — an engaging narrated guide to the planets, stars, and constellations now visible. The post April: Follow the Moon appeared first on Sky & Telescope.
Read MoreMutual Event Season Heats Up at Jupiter
Jupiter is usually the one occulting and eclipsing the Galilean moons, but this observing season the moons also eclipse and occult one another. The post Mutual Event Season Heats Up at Jupiter appeared first on Sky & Telescope.
Read MoreBits of Theia Might Be in Earth’s Mantle
A “smoking gun” for the ancient calamity that formed Earth’s large Moon may still exist deep in the mantle of our planet. The post Bits of Theia Might Be in Earth's Mantle appeared first on Sky & Telescope.
Read MoreInterstellar Comet Was Pristine Sample of Planet Formation
New analysis shows that Comet 2I/Borisov, which zipped nearest the Sun in late 2019, was unlike any comet we’ve seen before. The post Interstellar Comet Was Pristine Sample of Planet Formation appeared first on Sky & Telescope.
Read MoreSpotting a Faint Escaping Atmosphere
Low-density exoplanets orbiting close to their host stars tend to lose their atmosphere. Now, astronomers can measure how fast it disappears. The post Spotting a Faint Escaping Atmosphere appeared first on Sky & Telescope.
Read MoreAsteroid Apophis Will Miss Earth in 2068
Radar measurements taken early this month rule out any chance of a collision with Apophis over the next 100 years. The post Asteroid Apophis Will Miss Earth in 2068 appeared first on Sky & Telescope.
Read MoreJupiter’s Great Red Spot Gets Smaller — But Stronger
“Flakes” coming off the Great Red Spot have had some wondering if this epic storm is coming to an end. But observations and computer modeling show it’s only getting stronger. The post Jupiter's Great Red Spot Gets Smaller — But Stronger appeared first on Sky & Telescope.
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