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Topic: planets
Which life form really dominates Earth?
In 2018, there are around 7.6 billion people on the planet, but weigh us all together on a giant scale and we only make up 1/10,000 of Earth’s biomass. What is biomass? And what life forms dominate the rest of the pla...
Space Volcanoes, an AMNH Shelf Life 360 video
Here on Earth, volcanic eruptions are dramatic manifestations of our dynamic planet. Elsewhere in our solar system, awe-inspiring extraterrestrial volcanoes—both active and extinct—provide clues to planetary formation...
Why Earth Has Two Levels
Earth’s outer shell is made of two materials whose different densities and thicknesses give rise to two distinct “levels” on the planet’s surface. And evidently these two materials—continental crust and more dense ...
Mars 101: An introduction to the red planet
From its blood-like hue to its potential to sustain life, Mars has intrigued humankind for thousands of years. Learn how the red planet formed from gas and dust and what its polar ice caps mean for life as we know it....
The Mars Helicopter, NASA’s small autonomous rotorcraft demonstration
Launching in 2020 on the belly of NASA's next Mars Rover, this small rotorcraft will be an autonomous asset from above the Red Planet, taking photos of the landscape and scouting for its rover. The pair are scheduled ...
How NASA’s InSight Will Plumb the Depths of Mars
Propelled by a predawn rocket launch from California, NASA’s InSight spacecraft is now on a voyage of some six months to Mars to study the deep interior of the red planet. “The science that we want to do with this ...
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...
Shadows On Other Worlds
Explore the wonder of light from our star, the Sun, and how Shadows On Other Worlds, like on Venus or a faraway planet orbiting the red star Glise 581, would behave a little differently than they do here on Earth. Thi...
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...
Can you solve the seven planets riddle?
Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you must apprehend them before their reinforcements arrive. Of course, the fugitives won’t just stay put – they’ll try...
Curiosity at Martian Scenic Overlook, a panorama image of its 5 year journey
Tour Mars' Gale Crater from the vantage point of NASA's Curiosity Rover at Vera Rubin Ridge. In this video, project scientist Ashwin Vasavada points out geographical features and the rover's path within this composite...
How deep have humans dug into the Earth?
From the deep end of Olympic swimming pools to The Paris Catacombs to Switzerland's Gotthard Base Tunnel to the Z-44 Chayvo Well in eastern Russia, travel down into the planet via this surprising Tech Insider animatio...
NASA simulates how dust, smoke, and sea salt have traveled the planet
Watch as sea salt, dust, and smoke—aerosol particles traveling on the winds—have moved across our planet in 2017. This animated simulation, "based on both satellite observations and computer models that use physical e...
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...
Postcards from Saturn: The incredible images that Cassini sent home
For over a decade, Cassini has orbited around Saturn 294 times, collected more than 600 GB of data, visited over a dozen moons and discovered at least seven new ones. It has sent over 400,000 images back home. Skun...
Voyager at 40: Humanity’s ambitious expedition into interstellar space
On August 20, 1977, NASA launched the Voyager 2 space probe, following it with Voyager 1's launch on September 5th, 1977. Together, the two spacecrafts are one of humanity's most ambitious expeditions into space. Taki...
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...
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