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Three Alpha

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Category: Solar System

Comets Splitting into Comets, Splitting into Comets…

See that cluster of bright objects in the above image? Those are fragments of a comet called C/2019 Y4 (ATLAS) … More

Comets, hubble, Kreutz sungrazers

The Lives of Long Lasting Lineae

NASA has released this beautiful close up of the rim of a Martian impact crater, taken by the HiRISE camera … More

HiRISE, mars, MRO

Hayabusa2 is coming home

Japan’s Hayabusa2 probe has successfully completed its mission at the asteroid Ryugu and is now on its way home. It’s … More

Apollo, Asteroids, Genesis, Hayabusa2, Sample Return

How do we know when something is from outside the Solar System?

You probably saw the recent news that astronomers have spotted an object from interstellar space making its way through the … More

'Oumuamua, Borisov, Interstellar objects, Transients

The Solar System Has a Lot of Water

There have been a couple of recent discoveries of water in new places in the solar system. Last week a … More

cassini, ceres, Chandrayaan-1, Earth, enceladus, europa, hubble, life, mars, Moon, neptune, uranus, water

How long have we been predicting eclipses?

Tomorrow there will be a total lunar eclipse which will be visible in much of North America and Asia. I … More

ancient science, babylon, china, eclipse, greece, Moon, sun

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Recent Posts

  • A Black Hole Feeding on an Ageing Star Powers a Mysterious Microquasar
  • Comets Splitting into Comets, Splitting into Comets…
  • The Lives of Long Lasting Lineae
  • ESO Sees a Star’s Orbit Precess Around a Supermassive Black Hole
  • Hayabusa2 is coming home

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Categories

  • Earth
  • Solar System
  • The Universe

The Three Alpha logo is based on a solar eclipse photo by Luc Viatour, which is licensed as CC BY-SA 3.0.

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