Alkaid is the end star of the Big Dipper's handle, a bright-blue example of a nearby B-type star.
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Space News & Blog Articles
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You might be tempted to sleep through this annual shower but then you'd miss seeing some of the fastest meteors around. Not to mention their parent is the most famous comet of all.
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High above you on May evenings is an one obvious star pattern that just about everyone knows: the Big Dipper. This “Swiss Army Knife of the sky” can help you find many other key springtime stars and constellations. Just download or stream this month’s Sky Tour podcast.
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New time-lapse videos from the Chandra X-ray Observatory show the Crab Nebula and the Cassiopeia A supernova remnant over more than 20 years.
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A giant impact likely formed Pluto's heart-shaped basin, Sputnik Planitia. A big chunk of the impactor’s core might still be buried under the ice.
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Researchers might have located the birthplace of 469219 Kamo‘oalewa, a small asteroid that has been described as Earth’s “mini-moon.”
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All the planets now huddle around our line of sight toward the Sun. However, these moonless evenings present us the Spring Triangle, the Great Diamond with a sugar sprinkle on its edge, and the Pointers aligned vertically.
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The large constellation Vela contains many hidden treasures.
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Maybe everything in the outer solar system is an ocean world.
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By linking a family of meteorites on Earth to their relatives in the asteroid belt, scientists have arrived at a new understanding of the giant planets' movement early in the solar system's history.
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Sky & Telescope met with readers old and new at the annual Northeast Astronomy Forum.
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Astronomers have reconstructed a 3D video of hot gas orbiting a stone’s throw away from our galaxy’s central black hole.
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Springtime Leo walks high in the south, springtime Hydra snakes a quarter of the way around the celestial sphere, and the bright Moon aligns with Spica.
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Millions of viewers were wowed by last week’s total solar eclipse. Now, we get to see the eclipse from another angle: space.
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Wide-field photos of the total solar eclipse taken by several astronomers along the path of totality, caught a comet approaching the Sun.
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Jupiter aligns with distant Uranus before it exits the evening sky as a bright supernova flares in the southern galaxy NGC 3621.
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NASA's Perseverance mission has been collecting samples for later retrieval and return to Earth. Now, it's unclear how we'll get those samples home.
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A star in the constellation Norma appears to have been created when two stars merged.
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Jupiter is easy to spot, shining low in the west at nightfall. Near it are Uranus and Comet Pons-Brooks, tougher catches that require binoculars or a wide-field telescope — and some finding skills.
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New research suggests Exoplanet K2-18b may actually be a gas-rich planet with no habitable surface instead of a habitable water world.
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On August 12, 2026, a total solar eclipse will be visible across Greenland, Iceland, and Spain, with plenty of inspiring itineraries.
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