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Author: Alison Klesman

Alison earned her bachelor’s degree in physics and master’s degree in earth, atmospheric, and planetary science from MIT. During this time, she completed several years of research in the field of planetary science, working on research topics that ranged from comets and asteroids to the atmosphere of Pluto. She earned her Ph.D. in astronomy from the University of Florida for work surveying active galactic nuclei in massive galaxy clusters, after which she focused on outreach at Spencer's Observatory in Tucson, Arizona. Asteroid 30286 Klesman (2000 HG61) is named after her. Alison has been with the magazine since 2016.
Full Moon in July 2016.
Observing, The Moon

2025 Full Moon calendar: When to see the Full Moon and phases

The Moon and Antares
Observing

The Sky Today on Wednesday, May 14: The Moon and Antares

Mercury as seen by MESSENGER
Observing

The Sky Today on Tuesday, May 13: Catch you last glimpses of Mercury

May Full Moon
Observing

The Sky Today on Monday, May 12: May’s Full Moon, Mars, and the Beehive Cluster

Jupiter and moons on May 11, 2025, at 9:20 PM CDT
Observing

The Sky Today on Sunday, May 11: Callisto grazes Jupiter

The sky early in the morning on May 10, 2025
Observing

The Sky Today on Saturday, May 10: The Moon meets Spica

Position of asteroid Metis on May 9, 2025
Observing

The Sky Today on Friday, May 9: Metis reaches opposition

Full Moon among flowering tree branches
Observing

The Sky This Week from May 9 to 16: May’s Full Flower Moon blooms

The Swan Nebula (M17)
Observing

The Sky Today on Thursday, May 8: The swimming Swan Nebula

The sky on May 7, 2025, looking east 1 hour before sunrise
Observing

The Sky Today on Wednesday, May 7: View Venus, Saturn, and Neptune

Peak of the Eta Aquariid meteor shower, May 6, 2025, 4:30 AM, looking east
Observing

The Sky Today on Tuesday, May 6: The Eta Aquariids peak

HST image of Jupiter and Europa
Observing

The Sky Today on Monday, May 5: Europa vanishes behind Jupiter

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