Mark Zastrow, Author at Astronomy.com

James Webb, Hubble space telescopes face reduction in operations over funding shortfalls

Galaxy cluster pileup sets record for the size of its glow

A man in a suit and tie, identified by a nameplate reading "Mr. Isaacman," speaks into a microphone during a formal hearing or panel. Several people sit behind him.

Science, Space Exploration

Trump withdraws nomination of Jared Isaacman to lead NASA

Remembering Comet Tsuchinshan-ATLAS: The comet of the year

Alien Life, Exoplanets

K2-18 b could have dimethyl sulfide in its air. But is it a sign of life?

Telescopes and Equipment

No relief for astronomy industry in new tariff exemptions

Telescopes and Equipment

Amateur astronomy industry grapples with tariff chaos

Science, Solar System

How to build climate solutions: An interview with Tony Fadell

French space researcher denied entry to U.S. over views on Trump’s policies: report

Top 10 space stories of 2024

Robotic Spaceflight, Solar System

Astronomers just deleted an asteroid because it turned out to be Elon Musk’s Tesla Roadster

Exotic Objects, Galaxies

Unusual spiral quasar seen dancing with a companion