Eratosthenes: How He Calculated the Earth's Circumference

Science >> Science Discoveries > >> Astronomy

The Greek astronomer who used observations of the position of the sun at noon on the summer solstice in Alexandria and Syene to determine the circumference of the Earth was Eratosthenes.

Redshift and Distance: Understanding the Difference Between Near and Distant Galaxies

The Sun's Composition: What's It Made Of?

Astronomy

LIGO Supercomputer Upgrade Accelerates Astrophysics Breakthroughs

Sunset Insights: Solar Research on the International Space Station

Washington University’s X‑Calibur Launches Second Scientific Balloon from Antarctica

Science Discoveries

Scientists Pioneer Advanced Genome Editing in Entomological Research

Tracing Black Hole Thermodynamics: From Penrose to Hawking

New AI Method Overcomes Limited Data Challenges in Deep Learning

Science Discoveries

Astronomy

Astronomers Detect Elusive Neutron Star in SN 1987A Remnant

Mining for Mars: Testing Underground Habitats

Exploring Supernova Remnants: The Crab Nebula and Stellar Stories

Gaia Detects Two Temporarily Magnified Stars Through Microlensing

Frances Taranis Satellite Set to Launch This November, Revealing Storm Secrets

Independent Astronomer Teams Discover Missing Baryonic Matter, Linking Galaxies