This colored version of a 19th-century engraving depicts ancient Greek astronomer Hipparchus using a sighting tool to measure the positions of the stars. Science historians don't know exactly how ...

Elemental: Crafting Books from Nature” is an ode to the physical book, exploring thousands of years of practical knowledge ...

Across history, ancient civilizations crafted prototypes for many of the modern mechanisms that have become integral to ...

Recently two new observatories — NASA's SPHEREx and the Vera C Rubin Observatory — released their first images.

Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so ...

An astronomer, at last Despite her research, Rubin often felt like an imposter. She earned her Ph.D. in 1954, and about a year later, took a faculty position at Georgetown. She and Bob were ...

Astronomers have long estimated that ordinary matter – basically, anything other than dark matter – makes up only a fraction of the known universe.

University of Warwick. "Astronomers just found a giant planet that shouldn’t exist." ScienceDaily. ScienceDaily, 11 June 2025. <www.sciencedaily.com / releases / 2025 / 06 / 250611085304.htm>.

Astronomers have finally tracked down missing "ordinary" matter, which they discovered hiding as gas spread out in the vast expanses between galaxies.

The veteran Vatican astronomer, born in Detroit, recalled that Pope John Paul II once described faith and reason 'as the two wings that lift us toward the truth.' Jesuit Guy Consolmagno at the ...

Astronomers have finally tracked down missing "ordinary" matter, which they discovered hiding as gas spread out in the vast expanses between galaxies.

Astronomer Bernie Fanaroff helped to design South Africa’s plan to become a radioastronomy powerhouse — and it started with training the next generation. Astronomer Bernie Fanaroff helped to ...