Many of the more than five thousand satellites orbiting the earth are capable of producing high-resolution images. International agreements aren’t as clear. A U.S. Air Force U-2 pilot looks down at a suspected Chinese surveillance balloon as it hovers over the...
Light pollution interferes with the breeding patterns of animals and insects. How can we look to the stars if we can’t even see them? Two night scenes. On the left, stars fill the sky over the Coconino National Forest. (Credit: Coconino National Forest, U.S....
Light pollution affects more than just our ability to see the Big Dipper at night. Dive into the environmental and human consequences of too much light and discover how we might turn the night sky on again.
Exercise: After reading the article, divide students into groups of 3-4 to discuss main takeaways from the text. Then, instruct each group to come up with a one-sentence public service announcement to get people to turn off unnecessary lights in their local community. The class can then vote for their favorite PSA.
Oh Tang! If our seas rise too high there are exoplanets to settle. But hope you like freeze-dried food, because it’s a long trip out there. This illustration shows a fictional astronaut on Mars, as viewed through the window of a spacecraft. (NASA/JPL-Caltech)...
Fearing the prospect that our seas will rise and our climate get too hot to make life comfortable on Earth, some smart people are thinking about new homes in outer space. But is there a so-called Planet B we could actually reach in a spaceship and what would life be like there? In an entertaining article that takes us through time and space, Correspondent Tira Shubart explores these possibilities and comes to the conclusion that maybe we should concentrate our money and energy on cleaning up our own backyard.
Exercise: Shubart tells us that it is unlikely that Mars could be made habitable for humans. But let’s say that your students could come up with the technology that would make that possible. What would they need to produce to make Mars a place where people could live? Have them brainstorm a list of devices that would solve the problems Shubart discusses in the article. Then ask them come up with a list of ways we could clean up our environment on earth.
It’s been 50 years since humans walked on the Moon. Now, the U.S. is launching a costly program to return there and possibly pave the way to Mars. NASA’s Space Launch System rocket with the Orion spacecraft aboard at NASA’s Kennedy Space Center in Florida,...
Five decades after humans walked on the Moon, the U.S. space agency NASA is leading an international endeavor to return there at a cost of $93 billion. Correspondent Natasha Comeau decodes the Artemis project, a series of missions to build a long-term human presence on the Moon. The 21 nations that have signed the Artemis Accords for space exploration reflect today’s political divisions. Missing from the collaboration are China and Russia, which plan to build a lunar station of their own. It was competition with the then Soviet Union in the 1960s that spurred the first space race and resulted in the historic 1969 moon landing. Now, a host of private corporations are funding their own space initiatives.
Exercise: In teams, have students form their own private space exploration company. Were they able to successfully build their own rocket that could take people into space, what would be their mission? What would they hope to get out of their space exploration ventures? Have each team come up with three things they think space missions could accomplish.
Technology depends on rare earth minerals, but their extraction can harm our planet. Asteroids offer a plentiful source of valuable elements. In the future, mankind will go to the asteroid belt between Mars and Jupiter to mine for the vast wealth that is within the...
Part of a rocket from a Chinese mission will crash onto the moon this week, adding to debris from humans that is accumulating on the lunar surface. The moon, seen from Berlin, Germany, 11 January 2022 (AP Photo/Michael Sohn, File) Tomorrow, a crater on the far side of...
A powerful new space telescope to be launched this month will look back more than 100 million years ago to when the first stars and galaxies formed. NASA technicians lift the James Webb Space Telescope with its 18-segmented gold mirror inside a clean room at NASA’s...
High-speed debris is piling up in space, threatening vital satellites. Nations are developing needed techniques to clean up space and prevent hazards. A tiny, floating object pierced a hole in Canadarm, the Canadian robotic arm on the International Space Station...
Scientists are on the lookout for asteroids that could pose a danger to Earth but which could also hold the key to understanding life’s origin. A frame grab from a dashboard camera shows a meteor over Chelyabinsk, about 930 miles east of Moscow, Russia, 15...
By exploring Mars, we have taken a step closer to understanding humankind. Did life begin on the Red Planet? Could we one day live there? The first high-resolution, color image sent by NASA’s Perseverance Mars rover after its landing on 18 February 2021...
