StarDate

Orion Veil


Listen Later

A brilliant young star in the Orion Nebula apparently doesn’t want any more brothers or sisters. It’s blowing an intense “wind” that’s clearing out much of the gas around it — pushing away the raw materials for making more stars.

The star is known by the somewhat clumsy name of Theta-1 Orionis C. It’s the heaviest member of the Trapezium — a cluster of hot, massive young stars. The star is many times heavier than the Sun, tens of thousands of degrees hotter, and hundreds of thousands of times brighter.

The Trapezium is at the center of the Orion Nebula, a giant stellar nursery more than 1300 light-years away. The nebula has given birth to thousands of stars, with many more still being born.

But the Trapezium itself is surrounded by the Orion Veil — a giant bubble with relatively little gas.

Astronomers recently studied the bubble with SOFIA, an airborne observatory. They found that Theta-1 Orionis C is blowing the bubble. Hot winds from its surface are causing the bubble to expand at about 30,000 miles per hour. The remaining gas inside the bubble is so sparse that there’s not much left for making more stars. But gas is piling up the bubble’s edge, which could trigger the birth of stars — far away from the Trapezium.

Orion is in the south as night falls right now. The Orion Nebula is visible to the unaided eye. It looks like a fuzzy star below Orion’s Belt. Binoculars will reveal the Trapezium, near the center of the nebula.


Script by Damond Benningfield

...more
View all episodesView all episodes
Download on the App Store

StarDateBy Billy Henry

  • 4.6
  • 4.6
  • 4.6
  • 4.6
  • 4.6

4.6

251 ratings


More shows like StarDate

View all
Science Friday by Science Friday and WNYC Studios

Science Friday

6,133 Listeners

BirdNote Daily by BirdNote

BirdNote Daily

1,190 Listeners

Planetary Radio: Space Exploration, Astronomy and Science by The Planetary Society

Planetary Radio: Space Exploration, Astronomy and Science

1,345 Listeners

Radiolab by WNYC Studios

Radiolab

43,969 Listeners

Astronomy Cast by Fraser Cain and Dr. Pamela Gay

Astronomy Cast

2,866 Listeners

The 365 Days of Astronomy by 365DaysOfAstronomy.org

The 365 Days of Astronomy

336 Listeners

Universe Today Podcast by Fraser Cain

Universe Today Podcast

544 Listeners

Ask a Spaceman! by Paul M. Sutter

Ask a Spaceman!

804 Listeners

Space Nuts: Astronomy Insights & Cosmic Discoveries by Professor Fred Watson and Andrew Dunkley

Space Nuts: Astronomy Insights & Cosmic Discoveries

223 Listeners

SpaceTime: Your Guide to Space & Astronomy by Stuart Gary

SpaceTime: Your Guide to Space & Astronomy

320 Listeners

Short Wave by NPR

Short Wave

6,273 Listeners

The Supermassive Podcast by The Royal Astronomical Society

The Supermassive Podcast

287 Listeners

NASA's Curious Universe by National Aeronautics and Space Administration (NASA)

NASA's Curious Universe

851 Listeners

Why This Universe? by Dan Hooper, Shalma Wegsman

Why This Universe?

363 Listeners

Crash Course Pods: The Universe by Crash Course Pods, Complexly

Crash Course Pods: The Universe

505 Listeners