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Born on this date in 1879, Einstein changed our notions of space, time and matter – launched modern physics – and became a household name.
Scientists watched as, over a period of months, the asteroid known as P/2013 R3 broke into smaller pieces.
Why do we love him? Because he broke open the medieval idea of an enclosed, Earth-centered universe and set us on course for a new cosmology.
Chuck Yeager, first pilot to break the sound barrier, personified what it meant to have “the right stuff.”
Born in 1643, Isaac Newton’s insights laid a foundation for our modern understanding of celestial motion, light and gravity.
Learn why the Hubble Space Telescope is named for this astronomer.
What do you think? Should we be advertising our presence in space?
Global population reached 6 billion in 1999 and 7 billion in 2011. Today – October 12, 2017 – it stands at about 7.6 billion, according to United Nations estimates.
Astronomers announced the discovery of Proxima Centauri – next-nearest to our sun – on this date in 1915.
On October 6, 1995, astronomers announced 51 Pegasi b, a planet about half the mass of Jupiter, orbiting a star not unlike our sun.
Today is the 48th anniversary of humanity’s historic first steps on the moon. The story in pictures, here.
Telstar was the 1st satellite to relay television signals between Europe and North America. It launched on this date … and helped change the world.
We celebrate Asteroid Day on June 30 because it’s the anniversary of a 1908 explosion over Siberia that killed reindeer and flattened trees.
On May 25, 1961, John F. Kennedy gave a stirring speech to a joint session of Congress, inspiring a nation to land humans on the moon with a decade.
Alan Shepard became the 1st American in space on May 5, 1961. His suborbital flight took place just 3 weeks after the Soviet Union’s Yuri Gagarin orbited Earth once.
John Burroughs – born in 1837 – was one of the first nature writers. He was the first to say, “I go to nature to be soothed and healed, and to have my senses put in order.”
The earthquake – centered in Prince William Sound off the coast of south-central Alaska – was the most powerful yet recorded in North America at magnitude 9.2.
It was the first planet found since ancient times. William Herschel noticed it in 1781 during a routine survey of the stars.
Yuri Gagarin was a Russian pilot who became the first human to travel to space, in 1961. His story … plus links to a Yuri’s Night near you.
On February 20, 1962, John Glenn became the 1st American to orbit Earth and the first American space hero.
Mars at western quadrature March 24