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Topic: Astronomy
Why Isn’t Pluto A Planet?
Pluto was discovered by Clyde Tombaugh in 1930 and was originally considered to be the ninth planet from the Sun. After 1992, its status as a planet was questioned following the discovery of several objects of similar...
How NASA’s TESS Spacecraft Will Hunt Exoplanets
Since the 1995 confirmation of exoplanet 51 Pegasi b, the word exoplanet—a planet orbiting another star—has become a part of the vernacular. And thanks to technologies like the 2009-launched Kepler spacecraft, we've c...
Building the Giant Magellan Telescope, the world’s largest telescope
Underneath the University of Arizona’s football stadium are the beginnings of the Giant Magellan Telescope, set to be the largest optical telescope in the world. The Richard F. Caris Mirror Laboratory is the only plac...
Are there aliens out there?
Life began on the Earth around 3.5 billion years ago. Has the same thing happened somewhere else in the universe? On an icy moon? On a planet in the Goldilocks zone of a distant star? Imagine if hypothetical aliens we...
Where does Space begin?
How far away is Space from where you are at this moment? How much closer is it when you're flying in a plane? And how close is the International Space Station to Earth if we can spot it in the sky? Travel up, up, u...
Flight through the Orion Nebula in visible and infrared light
Explore the Orion Nebula, as seen with both visible light from the Hubble Telescope and infrared light via the Spitzer Space Telescope, with the help of this three-dimensional fly-through. The computer-generated visua...
How to Find a Living Planet
The more we see other planets, the more the question comes into focus: Maybe we're the weird one? Decades of observing Earth from space has informed our search for signs of habitability and life on exoplanets and even...
The 2017 Solar Eclipse from the shores of Palisades Reservoir, Idaho
Stand on the shores of Palisades Reservoir, Idaho as the moon's shadow passes over you and the crowds around you cheer. This awe-inspiring moment of totality, when a new moon blocks the sun's light during a solar ecli...
Eclipses Throughout Our Universe – Out There
An exercise in cosmic geometry. A reminder that we live on one sphere among many, all moving to the laws of Kepler, Newton and Einstein. The moon’s orbit around the Earth is slightly tilted, so the shadow of the new m...
How to watch a total or partial solar eclipse
On Monday, August 21st, 2017, sky gazers can witness a total or partial solar eclipse—weather-permitting and depending on their location on the planet—as it traverses North America. There's been a lot of excitement in...
The Big Dipper Through Time
Stars aren’t still--they move through space. Our Sun and the seven stars that form the Big Dipper in the constellation Ursa Major all orbit the center of the Milky Way at different speeds. So why do today’s constellat...
Fly over Jupiter with NASA’s Juno spacecraft
NASA's Juno Spacecraft is investigating Jupiter in a series of 37 orbits, and though images, data, and samples, these remarkable flybys have revealed some very cool things: 900 mile wide cyclones at the planet's poles...
POLI’AHU, a time lapse at Mauna Kea’s Astronomical Observatories
SkyGlowProject.com presents POLI'AHU, a time lapse trip above the clouds to Mauna Kea in Hawaii, an inactive volcano 14,000 feet above sea level. Much of the mountain is under water; when measured from its oceanic bas...
The exceptional life of Benjamin Banneker
Born in 1731 on a farm in Baltimore, Maryland, Benjamin Banneker was an accomplished author, publisher, scientist, astronomer, mathematician, urban planner, activist, and farmer throughout his life. A free descendant ...
How small are we in the scale of the universe?
In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky – what, if anything, was going to show up? But what came ...
Star Parties In Our National Parks: Parks After Dark
Visit the Grand Canyon and Death Valley with Planetary Society volunteer and national park enthusiast CaLisa Lee as she learns about Star Parties and the Parks After Dark. Thanks to our 59 untouched national parks, wh...
Carl Sagan’s ‘Pale Blue Dot’
From American astronomer, astrophysicist, and author Carl Sagan, inspired by the Voyager 1 photo of Earth taken on February 14, 1990: The Pale Blue Dot, written in 1994 and featured in 'Cosmos: A Space Time Odyssey' (...
The 1995 Hubble photo that changed astronomy
If you hold a pin at arm’s length up in the air, the head of the pin covers approximately the amount of sky that appears in the Hubble Deep Field. The iconic 1995 image is crowded, not because it’s a broad swath of sk...
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