Isaac Newton was born on January 4, 1643. His insights laid a foundation for our modern understanding of celestial motion, light and gravity.
Posts by Elizabeth Howell
A few days before the NASA spacecraft Voyager 2 skimmed by Neptune in 1989, it acquired images of a faint, continuous ring system encircling the planet.
On July 17, 1975, a famous first handshake between nations in space.
First subway system in France and second-busiest in Europe today. But its early days were not without controversy.
Under the call name “Chaika” (Seagull), Tereshkova launched solo aboard Vostok 6 in June, 1963, to become the first woman in space.
A look at why climbers use supplemental oxygen to climb Mount Everest and at the curtailment of the 2014 Everest climbing season following the deadly avalanche on April 18.
On May 1, 1930, 11-year-old Venetia Burney received £5 for naming Pluto, then the solar system’s outermost and newest planet.
On April 10, 1815, Mount Tambora sent so much crud into the atmosphere that it blocked the sun. What became known as the Year Without a Summer came a year later, in 1816.
William Herschel noticed while surveying stars that one object moved apart from the star background. It was the first planet discovered since ancient times.
On February 20, 1962, John Glenn became the first American to orbit the Earth. He made three turns around the planet before returning safely.