Astronomy Staff, Author at Astronomy.com | Page 90 of 278

Human Spaceflight, Space Exploration

NASA announces new homes for shuttle orbiters after retirement

Cosmology, Science

Episode 4: You can try this at home — cosmic expansion

NASA’s Spitzer discovers time-delayed jets around young star

Human Spaceflight, Telescopes and Equipment

Orion Dual-Speed Crayford Refractor Focuser

Telescopes and Equipment

Star Walk

Telescopes and Equipment

Starlight Instruments Integrated Paracorr System

Telescopes and Equipment

Celestron NexStar SLT Computerized Mount

Telescopes and Equipment

Boren-Simon PowerNewt

Human Spaceflight, Telescopes and Equipment

Orion Basic Telescope Accessory Kit

How does one differentiate between an exoplanet orbiting in front of a distant sun and a large starspot traveling across that star’s disk?

Ask Astro web extra: How many stars are there within 33 light-years of our solar system?

Why are all planetary systems and most galaxies disk-shaped?