Northeast Florida Astronomical Society

“Expanding horizons through education and observation”

Northeast Florida Astronomical Society

“Expanding horizons through education and observation”

APOD: Manicouagan Impact Crater from Space (2019 May 02)
Image Credit: NASA, International Space Station Expedition 59

Explanation: Orbiting 400 kilometers above Quebec, Canada, planet Earth, the International Space Station Expedition 59 crew captured this snapshot of the broad St. Lawrence River and curiously circular Lake Manicouagan on April 11. Right of center, the ring-shaped lake is a modern reservoir within the eroded remnant of an ancient 100 kilometer diameter impact crater. The ancient crater is very conspicuous from orbit, a visible reminder that Earth is vulnerable to rocks from space. Over 200 million years old, the Manicouagan crater was likely caused by the impact of a rocky body about 5 kilometers in diameter. Currently, there is no known asteroid with a significant probability of impacting Earth in the next century. But a fictional scenario to help practice for an asteroid impact is on going at the 2019 IAA Planetary Defense Conference.

Starship Asterisk* • APOD Discussion Page


News & Events

June General Meeting, Friday 6/14/2019 MOSH

Special General Meeting of the Northeast Florida Astronomical Society [NEFAS].  All are welcome! Friday, June 14  -  7:30 PM to 9:30 PM Museum of Science and History (MOSH) 1025 Museum Cir, Jacksonville, FL 32207 Special NEFAS General Meeting at Bryan-Gooding...

read more

Sun & Moon



Why Become a NEFAS Member?

NEFAS is an organization conceived to support public education and the astronomical community in Jacksonville and the surrounding areas. Our operating expenses are covered exclusively through annual dues and the generosity of individuals or corporate sponsorship. Learn more about the benefits of joining NEFAS.