How space debris created the world’s largest garbage dump

Since 1957, the world's space agencies have been polluting the space above us with countless pieces of junk, threatening our technological infrastructure and ability to venture deeper into space.

Space debris orbiting Earth

Framestock via Adobe Stock
  • Space debris is any human-made object that's currently orbiting Earth.
  • When space debris collides with other space debris, it can create thousands more pieces of junk, a dangerous phenomenon known as the Kessler syndrome.
  • Radical solutions are being proposed to fix the problem, some of which just might work. (See the video embedded toward the end of the article.)
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Looking for something? A team at MIT develop a robot that sees through walls

It uses radio waves to pinpoint items, even when they're hidden from view.

TORU YAMANAKA/AFP via Getty Images
In recent years, robots have gained artificial vision, touch, and even smell.
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Mixing human + animal DNA and the future of gene editing

"The question is which are okay, which are not okay."

  • As the material that makes all living things what/who we are, DNA is the key to understanding and changing the world. British geneticist Bryan Sykes and Francis Collins (director of the Human Genome Project) explain how, through gene editing, scientists can better treat illnesses, eradicate diseases, and revolutionize personalized medicine.
  • But existing and developing gene editing technologies are not without controversies. A major point of debate deals with the idea that gene editing is overstepping natural and ethical boundaries. Just because they can, does that mean that scientists should be edit DNA?
  • Harvard professor Glenn Cohen introduces another subcategory of gene experiments: mixing human and animal DNA. "The question is which are okay, which are not okay, why can we generate some principles," Cohen says of human-animal chimeras and arguments concerning improving human life versus morality.

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You are suffering from “tab overload”

Our love-hate relationship with browser tabs drives all of us crazy. There is a solution.

Photo by Anna Shvets from Pexels
Technology & Innovation
  • A new study suggests that tabs can cause people to be flustered as they try to keep track of every website.
  • The reason is that tabs are unable to properly organize information.
  • The researchers are plugging a browser extension that aims to fix the problem.
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Are we in an AI summer or AI winter?

Neither. We are entering an AI autumn.

Credit: Jesse Chan via Unsplash
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  • The history of AI shows boom periods (AI summers) followed by busts (AI winters).
  • The cyclical nature of AI funding is due to hype and promises not fulfilling expectations.
  • This time, we might enter something resembling an AI autumn rather than an AI winter, but fundamental questions remain if true AI is even possible.
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MIT artificial intelligence tech can generate 3D holograms in real-time

A new method could make holograms for virtual reality, 3D printing, and more. You can even run it can run on a smartphone.

TOSHIFUMI KITAMURA/AFP via Getty Images
Technology & Innovation

Despite years of hype, virtual reality headsets have yet to topple TV or computer screens as the go-to devices for video viewing.

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