Oct 9, 2019

What the birth of a binary looks like

Two young stars are being born from turbulent disks of gas and dust in a new photo taken by the ALMA telescope in Chile.

Two young stars are being born from turbulent disks of gas and dust in a new photo taken by the ALMA telescope in Chile.

What they're saying: "The size of each of these disks is similar to the asteroid belt in our solar system," Felipe Alves, an author of the study detailing this finding, said in a statement.

Details:

  • The circumstellar disks of the system, located in the Pipe Nebula, are fed by gas and dust in a larger disk surrounding the growing stars.
  • The image — released on Oct. 4 — could help illuminate how binary systems of stars grow in deep space.

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An interstellar comet revealed

Comet 2I/Borisov. Photo: Gemini Observatory/NSF/AURA

The interstellar comet discovered in August looks very similar to comets originating in our own solar system, according to a new study in Nature Astronomy this week.

The big picture: Comet 2I/Borisov represents just the second-known interstellar object to make its way through our solar system, and it's astronomers' best chance so far to study a piece of a distant star system at close range.

Go deeperArrowOct 15, 2019

The coal industry hits natural gas on climate change concerns

Illustration: Sarah Grillo/Axios

America's beleaguered coal industry is attacking natural gas for its role in fueling climate change.

Between the lines: It’s ironic because coal is considered far more damaging to the climate than gas.

Go deeperArrowOct 10, 2019

Hubble Space Telescope captures best view yet of interstellar comet

Gif: NASA/ESA/D. Jewitt (UCLA)

The Hubble Space Telescope has given us our best view yet of the interstellar comet 2I/Borisov on its way through our solar system.

Details: The new photos of the comet show it in blue light speeding along, about 420 million kilometers (261 million miles) from Earth.

Go deeperArrowOct 22, 2019