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Posts by Elizabeth Howell

Tambora in 2009. Image via NASA
Blogs | This Date in Science | Apr 10, 2014

This date in science: Largest volcanic eruption in recorded history

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.

Planet Uranus via Voyager 2 in 1986
Blogs | This Date in Science | Mar 13, 2014

This date in science: Uranus discovered, completely by accident

William Herschel noticed while surveying stars that one object moved apart from the star background. It was the first planet discovered since ancient times.

John Glenn and Friendship 7
Blogs | This Date in Science | Feb 20, 2014

This date in science: John Glenn is first American to orbit Earth

On February 20, 1962, John Glenn became the first American to orbit the Earth. He made three turns around the planet before returning safely.

Great Meteor Procession of 1913 via U. of Toronto
Blogs | This Date in Science | Feb 09, 2014

This date in science: Great Meteor Procession of February 9, 1913

Today is the 101st anniversary of the Great Meteor Procession, in which bright meteors were seen to cross the sky on stately, nearly identical paths.

The bathyscaphe Trieste.  Photo via U. Delaware.
Blogs | This Date in Science | Jan 23, 2014

This date in science: A record-setting dive into the deepest ocean

On January, 23, 1960, the bathyscaphe Trieste made a record-setting dive to the deepest known part of the ocean.

Via teachertech.rice.edu
Blogs | This Date in Science | Dec 25, 2013

This date in science: Isaac Newton’s birthday

Isaac Newton was born on December 25, 1642. His work laid much of the foundation for our modern understanding of the physical universe.

Image via rapgenius.com
Blogs | This Date in Science | Sep 27, 2013

This date in science: E=mc2

Mass and energy are interchangeable.

Image credit:  NASA/Ames
Blogs | This Date in Science | Sep 01, 2013

This date in science: Pioneer 11 swept past Saturn

Pioneer 11 was the first spacecraft ever to encounter Saturn. It paved the way for the even-more-sophisticated Voyager spacecraft.

Neptune's rings via Voyager 2.
Blogs | This Date in Science | Aug 22, 2013

This date in science: Definitive discovery of Neptune’s rings

When the NASA spacecraft Voyager 2 skimmed by Neptune, it acquired images of a faint, continuous ring system encircling the planet.

Artist's concept Voyager 2 via NASA
Blogs | This Date in Science | Aug 20, 2013

This date in science: NASA launched Voyager 2 space probe

Voyager 2 realized the vision of what was originally called a Grand Tour of the outer solar system. It remains the only craft to have visited all four outer planets.