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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.
Observing

The Sky Today on Thursday, October 23: The Moon visits Mars and Mercury

Full Moon in July 2016.
Observing, The Moon

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

Observing

The Sky Today on Wednesday, October 22: Check out the California Nebula

Observing

The Sky Today on Tuesday, October 21: The Orionids peak, Comet Lemmon is closest to Earth, and Titan makes a transit

Observing

The Sky Today on Monday, October 20: Visit the Pleiades

Today in the History of Astronomy

Oct. 19, 2017: The discovery of ‘Oumuamua

Observing

The Sky Today on Sunday, October 19: The Moon and Venus before dawn

Observing

The Sky Today on Saturday, October 18: Io, Europa, and their shadows cross Jupiter

Observing

The Sky Today on Friday, October 17: Catch open cluster M34

Sky This Week, The Sky This Week

The Sky This Week from October 17 to 24: The Orionids peak

Observing

The Sky Today on Thursday, October 16: The Moon rises with Regulus

Path of Comet Comet C/2025 A6 (Lemmon) from Oct. 13-23, 2025
Observing

The Sky Today on Wednesday, October 15: Check out Comet Lemmon

Posts pagination

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