Category Archives: Earth
If this doesn’t tug at your heart’s space strings, I don’t know what will.
What we’re seeing here is a video made from images captured by NASA’s Juno spacecraft as it flew past Earth on October 9, 2013. This is the first time a video has been made of the Moon orbiting our planet from beyond the Earth-Moon system*, and, in effect, it’s what a future human space traveler would see as they return home.
Last Wednesday, Oct. 9, 2013, NASA’s Juno spacecraft made a slingshot pass of Earth in order to get the necessary speed boost to reach Jupiter in 2016. As it came within 347 miles of our planet’s surface, passing closest over the southern Atlantic at 3:21 p.m. EDT, it used its JunoCam (developed by the San Diego-based Malin Space Science Systems) to take images along the way. This is one of them, and it gives us a spacecraft’s-eye-view of the Atlantic and the eastern coast of Argentina.
On July 19 did you wave at Saturn as Cassini was aiming its camera back our way? If you did (and if you sent a photo of you waving to JPL, like I did) you’re in this awesome new image, a compilation of 1400 submitted photos from assembled into a mosaic of Earth, a planet-wide wave to a spacecraft 900 million miles from home.
What does the Earth and Moon look like from other planets in the solar system? Just more pretty little lights in the dark…
So did you get out and Wave at Saturn on The Day the Earth Smiled? If you did (and even if you didn’t) here’s how you — and everyone else on Earth — looked to the Cassini spacecraft in orbit around Saturn, 898.4 million miles away.
As Carl Sagan famously said, “That’s here, that’s home, that’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives.” On that bright point of light, the entirety of our world — past and present — resides. And just below it and to the left is the Moon… still to date the farthest that humans have ever physically ventured.
It’s a sobering image, but also quite beautiful… as well as deceiving in its simplicity as only now do humans have the technology to witness the entire planet and its lone moon as such tiny specks of distant light. Still, during the exploration of our solar system, it’s important to take a moment to look back home.
Earth… our home planet, a brilliant “blue marble” tirelessly turning through space on an endless journey around the Sun and across the galaxy. Basically a ball of molten rock and metal, its relatively thin crust is mostly covered by a sea of liquid water as well as wrapped in a sea of air… and it’s the complex interaction between all of these things that have allowed life to evolve, thrive, and — so far, anyway — continue to exist on this one particular world.
But how exactly does this work? How, and why, do all of these different factors combine to make a habitable planet? Energy from the Sun, the movement of the atmosphere, the planet’s rotation, the constant churning of ocean currents, the upwelling of materials from deep inside the Earth… all of these play essential roles every day in the survival of nearly every living thing on our planet — including us. To truly understand life on Earth, we must first understand the complex interactions of these forces, and more.
Luckily we have satellites, our “eyes in the sky” that let us look at the entire world on a daily basis and measure and monitor many different processes like never before, letting us see the otherwise invisible big picture of Earth From Space.
Do you know how long a tardigrade can survive in space? How much gold is in seawater? How long it’s been since it rained in Antarctica’s Dry Valleys? There are a whole lot of amazing facts about our planet and this infographic has 50 of them (and while seemingly unbelievable, they’re all true!) See the full version below: