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A Black Hole Feeding on an Ageing Star Powers a Mysterious Microquasar

A new paper by Qin Han and Xiang-Dong Li of Nanjing University, due to be published in the Astrophysical Journal,…

black holes, Microquasars, SS433, W50

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)…

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…

HiRISE, mars, MRO

ESO Sees a Star’s Orbit Precess Around a Supermassive Black Hole

The European Southern Observatory has observed the way a star’s orbit changes as it circles the supermassive black hole at…

black holes, Relativity, S2

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…

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…

'Oumuamua, Borisov, Interstellar objects, Transients

Why astronomers are excited about repeating fast radio bursts

The CHIME telescope in Canada recently detected eight new repeating fast radio bursts. This is huge news! It brings the…

CHIME, Fast Radio Bursts, Radio Astronomy, 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…

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

Not all gravitational waves start with a bang

You’ve probably heard of gravitational waves. They’ve been in the news a lot recently because of two experiments called LIGO…

black holes, compact objects, gravitational waves, kilonova, ligo, neutron stars, virgo

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…

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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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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