Scientific American on Instagram: "If you look up at the sky tonight, you might see two rare things at once: a comet AND a meteor shower.  Learn more about the two astronomical events at the link in our bio.  Clara Moskowitz ️ Carin Leong  Amanda Montañez; Source: Stellarium with additions by Bob King (reference)  Brennan Gilmore, Getty Images ✏️ Dan Falk #comet #meteorshower #space #astronomy #science"

The Space Doctor on Instagram: "The creator and the destroyer. The Andromeda and Milky Way galaxies are expected to collide in about 4.5 billion years. Surprisingly the sun becomes a red giant in around the same time. So what's a red giant? When a star is about to die it increases in size, our sun will do the same. This happens before the Andromeda collides with our milky way to form Milkromeda. Is it a kind of backstab done by sun? Or something else. #space"

Star Walk 2 — Best Astronomy App  on Instagram: "Don’t miss the Orionids (+ 2 comets) on October 21! ☄️ #astronomy #starwalk #stargazing #orion #orionids"

Galaxies on Instagram: "What an amazing capture! A 1.3 foot wide space rock, traveling at 56,000 MPH, collided with the lunar surface on March 17th, 2013, and the explosion could be seen with the naked eye on Earth. NASA’s Lunar Reconnaissance Orbiter snapped imagery of the impact area."

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Cleo Abram on Instagram: "Our solar system is on a collision course. Yep. Here’s what you need to know… These visuals are from the American Museum of Natural History’s incredible show, Encounters in the Milky Way. It’s incredible. Go watch it! #history #sky #space #timelapse #animation"

FlickFable on Instagram: "Follow @flick.fable for more Rising from the golden sands of Giza, the Pyramids of Egypt stand as eternal monuments to human ambition and mystery. Built more than 4,500 years ago, these colossal stone giants were created long before modern tools, cranes, or technology existed. Yet they remain perfectly aligned with the stars, their shadows marking time more accurately than some modern clocks. To gaze upon them is to stare directly into history — a history written not in