This faint ring of radio emission might signal a momentous event in galactic evolution. Then again, it might be something else entirely. The post New Image Reveals Possible Origins of “Odd Radio Circles” appeared first on Sky & Telescope.
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This Week’s Sky at a Glance, March 25 – April 2
What constellation trots behind Sirius and Canis Major across the southern sky? Puppis, not a puppy but the poop deck of Argo Navis. In this dark of the Moon, try for the Clown-Face Nebula high in Gemini. And the three dawn planets dance through two more isosceles triangles. The post This Week's Sky at a Glance, March 25 – April 2 appeared first on Sky & Telescope.
Read MoreHundreds of Thousands of Stars Reveal the Milky Way’s “Teenage” Years
A census of hundreds of thousands of subgiant stars in our galaxy provides a window into the Milky Way’s early history. The post Hundreds of Thousands of Stars Reveal the Milky Way’s “Teenage” Years appeared first on Sky & Telescope.
Read MoreMeet Procyon, Orion’s Littler Dog
Meet Procyon, the brightest of the few stars in Canis Minor, the Lesser Dog. On its way to becoming a giant, this star is part of the Winter Triangle and Wniter Hexagon asterisms. The post Meet Procyon, Orion’s Littler Dog appeared first on Sky & Telescope.
Read MoreThe History of Venus in Air, Rock, and Water
Forty years ago, NASA’s Magellan mission “closed the book” on Venus. Now, a new generation of astronomers think the planet next door deserves a second chance. The post The History of Venus in Air, Rock, and Water appeared first on Sky & Telescope.
Read MoreIs “Slow Science” the Answer to Astronomy’s Carbon Footprint?
The first quantitative assessment of professional telescopes’ carbon footprint finds that these facilities contribute more emissions than all other astronomy research activities combined. The post Is “Slow Science” the Answer to Astronomy's Carbon Footprint? appeared first on Sky & Telescope.
Read MoreThis Week’s Sky at a Glance, March 18 – 26
Sirius sparkles on the corner of the Meat Cleaver, two open clusters hide under the Cleaver’s handle, Orion’s Belt levels out for the turning of spring, and Venus, Mars and Saturn slow-dance at dawn. The post This Week's Sky at a Glance, March 18 – 26 appeared first on Sky & Telescope.
Read MorePulsar Shoots 7-light-year-long Phaser Blast
Nature proves truth is still stranger than fiction: A pulsar has shot energetic particles in a thin, straight line that extends for light-years into space. The discovery might explain how antimatter makes its way to Earth. The post Pulsar Shoots 7-light-year-long Phaser Blast appeared first on Sky & Telescope.
Read MoreWill Saturn Sprout Spots this Observing Season?
As Saturn returns to the morning sky, will this otherwise serene-looking planet experience another bout of severe weather? Keep your eyes peeled for white spots! The post Will Saturn Sprout Spots this Observing Season? appeared first on Sky & Telescope.
Read MoreFirst Look at an Unusual Exoplanet’s Atmosphere
AAS Nova reports on a “super-puff” exoplanet that’s nearly 15 times less dense than Jupiter. The post First Look at an Unusual Exoplanet’s Atmosphere appeared first on Sky & Telescope.
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