Sign up for our daily briefing
Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.
Stay on top of the latest market trends
Subscribe to Axios Markets for the latest market trends and economic insights. Sign up for free.
Sports news worthy of your time
Binge on the stats and stories that drive the sports world with Axios Sports. Sign up for free.
Tech news worthy of your time
Get our smart take on technology from the Valley and D.C. with Axios Login. Sign up for free.
Get the inside stories
Get an insider's guide to the new White House with Axios Sneak Peek. Sign up for free.
Catch up on coronavirus stories and special reports, curated by Mike Allen everyday
Catch up on coronavirus stories and special reports, curated by Mike Allen everyday
Want a daily digest of the top Denver news?
Get a daily digest of the most important stories affecting your hometown with Axios Denver
Want a daily digest of the top Des Moines news?
Get a daily digest of the most important stories affecting your hometown with Axios Des Moines
Want a daily digest of the top Twin Cities news?
Get a daily digest of the most important stories affecting your hometown with Axios Twin Cities
Want a daily digest of the top Tampa Bay news?
Get a daily digest of the most important stories affecting your hometown with Axios Tampa Bay
Want a daily digest of the top Charlotte news?
Get a daily digest of the most important stories affecting your hometown with Axios Charlotte
Illustration: Sarah Grillo/Axios
The effects huge constellations of satellites could have on astronomy are starting to come into focus, and astronomers are grappling with what this industrialization of space could mean for the future of their field.
The big picture: Companies like SpaceX and Amazon have plans to launch thousands of internet-beaming satellites to orbit in the coming years.
Where it stands: Satellites can disrupt images taken by powerful telescopes on Earth. In particular, these spacecraft can impede scientists' ability to find dangerous asteroids and distant objects of interest.
- Scientists now suggest these satellites should be in relatively low orbits because that would keep them out of the field of view for large telescopes for much of the night.
- Concerns from the scientific community aren’t just focused on streaking satellites in telescope fields of view. Radio astronomers could also face interference from these satellites as they transmit overnight.
The intrigue: Since 2018, SpaceX has launched more than 900 Starlink satellites as part of its constellation, and other companies are racing to catch up. That quick pace hasn’t left much time for astronomers to advocate for their needs.
- "We need more ground rules up there, in a fairly 'Wild West' environment, as more and more people get into the game," Jeff Hall, of the Lowell Observatory, said during a panel at the American Astronomical Society meeting last week.
What to watch: Astronomers are collaborating with space companies to be sure any interference from their satellites is kept to a minimum.
- The National Science Foundation and American Astronomical Society have put out a joint report discussing the impact these satellites are having on astronomy, and the International Astronomical Union also has a report on the topic.
- SpaceX is working on lowering the visibility of their Starlink satellites in a variety of ways, including coating some of them with a material to reduce reflectivity.
- A study in December showed these "DarkSats" are about half as reflective as earlier Starlink satellites launched by SpaceX. The company is also experimenting with other methods that could further reduce their reflectivity.