The Polar Ring Galaxy
The polar ring galaxy may actually be two galaxies that are gravitationally pulled together. When this happens, an unusual ring of gas and stars rotate around the poles of what appears to be a single galaxy, as captured in this image.
NGC 2685 is a confirmed polar ring galaxy - a rare type of galaxy with stars, gas and dust orbiting in rings perpendicular to the plane of a flat galactic disk. The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring. Still, observed properties of NGC 2685 suggest that the rotating ring structure is remarkably old and stable. In this sharp view of the peculiar system also known as Arp 336 or the Helix galaxy, the strange, perpendicular rings are easy to trace as they pass in front of the galactic disk, along with other disturbed outer structures. NGC 2685 is about 50,000 light-years across and 40 million light-years away in the constellation Ursa Major.
Image credit: NASA
The best-selling author tells us his methods.
- James Patterson has sold 300 million copies of his 130 books, making him one of the most successful authors alive today.
- He talks about how some writers can overdo it by adding too much research, or worse, straying from their outline for too long.
- James' latest book, The President is Missing, co-written with former President Bill Clinton, is out now.
Pfizer's partnerships strengthen their ability to deliver vaccines in developing countries.
- Community healthcare workers face many challenges in their work, including often traveling far distances to see their clients
- Pfizer is helping to drive the UN's sustainable development goals through partnerships.
- Pfizer partnered with AMP and the World Health Organization to develop a training program for healthcare workers.
It's the first time the association hasn't hired a comedian in 16 years.
- The 2018 WHCA ended in controversy after comedian Michelle Wolf made jokes some considered to be offensive.
- The WHCA apologized for Wolf's jokes, though some journalists and many comedians backed the comedian and decried arguments in favor of limiting the types of speech permitted at the event.
- Ron Chernow, who penned a bestselling biography of Alexander Hamilton, will speak at next year's dinner.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.