These boxy satellites, small enough to fit in a backpack, are currently trailing thousands of miles behind the InSight spacecraft on their way to Mars.
An artist's rendering of the twin Mars Cube One (MarCO) spacecraft flying over Mars with Earth in the distance. Image via NASA/JPL.
In China and other Asian countries, it’s sometimes called the Moon Festival in honor of the upcoming full moon.
Sky lanterns at the Mid-Autumn Festival.
As Earth rotates, its spin axis — an imaginary line that passes through the North and South Poles — drifts and wobbles. Scientists now have, for the 1st time, identified 3 reasons why.
The light blue line shows the observed direction of "polar motion" - the drift of Earth's spin axis. The pink line represents the sum of the influence of Greenland ice loss (blue), postglacial rebound (yellow) and the highly uncertain contribution of deep mantle convection (red). These lines represent the direction of drift, not the amount. Over the 20th century, the amount of drift was 11 yards (10 meters). Image via NASA/ JPL-Caltech
Contrary to popular thought, birds wintering in the tropics survive the winter better than birds wintering in the U.S. That’s despite the fact that tropical wintering birds migrate 3 to 4 times farther.
Over its lifetime of about 25 years, an Arctic tern can fly nearly 3 times the distance from the Earth to the moon.
Arctic Tern in flight via Wikimedia Commons
Neruda wrote: “Every day you play with the light of the universe.”
Japan’s space agency JAXA said the pair of tiny robots – released by the Hayabusa2 space probe – touched down Saturday on asteroid Ryugu. See the images here.
This amazing photo was captured by Rover 1A as it was bouncing or hoping over the surface of asteroid Ryugu on September 22, 2018. The bright, white region is due to sunlight. (JAXA/Hayabusa2 Project)
We have an equinox coming up on September 23 at 01:54 UTC. That’s September 22 for clocks in North America. Details here. Happy autumn (or spring)!
First sunrise of fall from central North Carolina - September 22, 2018 - via our friend Lee Capps.https://www.facebook.com/leecappsphoto?tn-str=*F
Conventional rockets – with their onboard fuel – are expensive and dangerous. A new “quantized inertia” concept might make rocket launches cheaper and safer. The concept has just received $1.3 million in new funding.
Conventional chemical rockets, such as NASA's upcoming Space Launch System, use fuel for power. But what if they didn't need fuel anymore, and could use quantised inertia for thrust instead? A radical theory concept proposing that has now been funded by DARPA. Image via Boeing.