Radar astronomers are peering toward asteroid 2017 CS, closest on May 29. Another asteroid – 418094 (2007 WV4) – will be closest June 1. Charts here for Saturday night, for 8-inch or larger ‘scopes!
Artist's concept of a large asteroid passing Earth, via Shutterstock.
For the 1st time since 2009, a new moon – not a full moon – will be the closest and largest supermoon of a year.
| Youngest possible lunar crescent, with the moon's age being exactly zero when this photo was taken — at the precise moment of the new moon - at 07:14 UTC on July 8, 2013. Image by Thierry Legault. Visit his website.
Used with permission.
Expect higher-than-usual tides for a few days following the May 25, 2017 new supermoon.
Photo by John Lloyd Griffith
On May 25, 1961, John F. Kennedy gave a stirring speech to a joint session of Congress, inspiring a nation to land humans on the moon with a decade.
Crowd watches Apollo 11 launch on July 16, 1969
By at least 1 definition, the year 2017 has 4 supermoons. Three are new moons and not visible in our sky. The only full moon supermoon of 2017 will come in December.
Photo by Rebecca Lacey in Cambridge, Idaho
When astronomers aimed the Very Large Array at the well-studied galaxy Cygnus A, they were surprised to find a bright new object near the galaxy’s core. Supernova explosion, or a second supermassive black hole?
Image via Bill Saxton, NRAO/AUI/NSF.
This year’s list includes a spider and an ant with names drawn from popular books, a pink katydid and an omnivorous rat.
Image via IISE
The shortest lunar month of 2017 starts with the May 25 new moon, which is also the closest new moon of the year. Coincidence?
The moon's orbit around Earth is not a perfect circle. But it is very nearly circular, as the above diagram shows. Diagram by Brian Koberlein.
It’s not just any supermoon, but the closest and largest supermoon of 2017. The young moon that follows this new moon will mark the beginning of Ramadan.