Not only do we humans struggle to manage our trash on Earth — it's a problem in outer space too.
According to the European Space Agency ( ESA ), the total mass of all the man-made space objects in Earth's orbit is more than 9,200 metric tons. Statistical models estimate that there are 34,000 objects greater than 10 centimeters crowding our planet, 900,000 objects between 1 and 10 centimeters, and 128 million objects between smaller than 1 centimeter.
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Bad Astronomy | Vega, 4th brightest star in the sky, may have a superhot planet
Vega is arguably one of the prettiest stars in the night sky. Brilliant and blue, it's the sparkling sapphire that marks the constellation Lyra high in the northern sky. It's one of the brightest stars in the sky, due to it being close to us, just 25 light years away, and intrinsically luminous, pouring out 40 times more energy than the Sun.
And a paper that's just come out indicates it might — might — have a planet orbiting it. If so, that's pretty interesting, and not just because we can send Jodie Foster there to check it out . For one thing, very few planets have been found around stars like it. For another, it would be incredibly hot, the second hottest planet ever found and hotter than some stars.
Integrating diverse satellite images sharpens our picture of activity on Earth (op-ed) | Space
Amanda Ziemann is a remote sensing scientist at Los Alamos National Laboratory in New Mexico. She contributed this article to Space.com's Expert Voices: Op-Ed & Insights .
Being able to accurately detect changes to Earth's surface using satellite imagery can aid in everything from climate change research and farming to human migration patterns and nuclear nonproliferation. But until recently, it was impossible to flexibly integrate images from multiple types of sensors — for example, ones that show surface changes (such as new building construction) versus ones that show material changes (such as water to sand).
Newly discovered bacteria on space station could help astronauts grow plants on Mars | Space
While space food has evolved from the puree packets of NASA's early years, it will likely need to advance further; future astronauts on Mars missions and other long treks through deep space will probably need to grow some of their own food , experts have said. But growing food in space is no easy feat, as plants depend on "helpful" bacteria in soil that wouldn't exist off-Earth (as far as we know).
In a new study, researchers at NASA's Jet Propulsion Laboratory (JPL) ,the University of Southern California, Cornell University and the University of Hyderabad in India discovered and isolated strains of bacteria aboard the International Space Station. The scientists think it's possible that these bacteria could help plants grow in extreme environments like space.
While you're here, how about this:
Russian Soyuz carrier rocket delivers 38 satellites from 18 countries into orbit - Science &
MOSCOW, March 22. /TASS/. South Korea’s CAS500-1 Earth’s remote sensing satellite and another 37 satellites launched atop a Russian Soyuz-2.1a carrier rocket from the Baikonur spaceport have been successfully delivered into the designated orbit by the carrier’s Fregat booster, Roscosmos Chief Dmitry Rogozin announced on Monday.
"Overall, the CAS500-1 spacecraft and 37 hosted payload satellites have separated," the Russian space agency head said.
Innovative Propulsion System Will Study Moon Orbit for Artemis | NASA
Astro Bob: Watching the seasons change at Saturn | Brainerd Dispatch
Any planet with a tipped axis like the Earth has seasons. On Earth, the northern hemisphere angles steeply sunward from May through August, so the sun shines high in the sky. As a consequence, daylight hours are long, heat builds up and summer happens. In winter, when the Earth moves to the other side of its orbit, the northern hemisphere is tipped away from the sun. It shines low in the sky, resulting in shorter hours of daylight and falling temperatures.
It's rather incredible to think that the profound differences between the seasons stem from a single cause: the varying amount of solar energy each hemisphere receives across a year. This fact holds for any planet with a significant nod to its axis.
UPDATE: They Go Up So Fast… Rocket Lab Enjoys A Six Smallsat Launch Success… – SatNews
Rocket Lab has successfully launched their 19th Electron mission and deployed six spacecraft to orbit for a range of government and commercial customers.
The mission, named ' They Go Up So Fast ,' also deployed Rocket Lab's latest in-house manufactured Photon spacecraft to build flight heritage ahead of the upcoming CAPSTONE mission to the Moon for NASA.
After Electron successfully launched to an initial 550 km circular orbit, the rocket's integrated space tug or Kick Stage deployed the first five satellites to their individual orbits.
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