Jennifer Leman
Jennifer Leman
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What Is Tear Gas? | How Tear Gas Works - Riots and Protests 2020

What Is Tear Gas? | How Tear Gas Works - Riots and Protests 2020

This weekend, tens of thousands of people have gathered in various cities across the U.S. to protest police violence and racial injustice in the wake of the May 25 , a Black man who died after a white police officer kneeled on his neck in downtown Minneapolis. While many of the protests have been peaceful, , including in cities like Minneapolis, New York, Los Angeles, and Chicago. To disperse protesters, police officers have deployed tear gas, as captured in videos like this one:This content is imported from YouTube. You may be able to find the same content in another format, or you may be...

September 3, 2019
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Ham Radio ISS - How to Call Space Station Astronauts

Ham Radio ISS - How to Call Space Station Astronauts

In a strange turn of events, a ham radio enthusiast in Gujarat, India falsely claimed to have made contact with NASA astronauts Bob Behnken and Doug Hurley to the International Space Station last weekend.History, MadeEngineer Adhir Saiyadh told the he decided to try to connect with the ISS as it sped over India and "coincidentally got connected to their frequency and received a response from one of the commandants of the capsule," he said. But NASA says it simply isn't true.Behnken and Hurley from NASA's historic Launch Complex 39A on Saturday, May 30. After 19 hours in orbit, the...

June 5, 2020
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Is There Water on Mars? - Scientists Find Water Bodies on Mars

Is There Water on Mars? - Scientists Find Water Bodies on Mars

In 2018, planetary scientist Roberto Orosei and his colleagues stirred up a multi-planetary controversy when they claimed they'd found evidence of a subglacial lake nearly a mile below ice at Mars's south pole. At the time, fellow planetary scientists met the claims with intense scrutiny.Now, Orosei, a planetary scientist at Italy's National Institute for Astrophysics, and his fellow researchers say they have new, additional evidence that these deep, vast subglacial lakes really do exist. They published this week in the journal Nature Astronomy.🌌 You like badass space stuff. So do we. If...

September 30, 2020
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Idaho Earthquake - Why Idaho Is Still Shaking

Idaho Earthquake - Why Idaho Is Still Shaking

On March 31, a 6.5 magnitude earthquake rolled through Idaho's Sawtooth mountain range, northeast of Boise. It was the second largest earthquake to strike Idaho, according to the . (The strongest temblor in Idaho history, 1983's Borah Peak earthquake, registered as a magnitude 6.9.)This content is imported from Twitter. You may be able to find the same content in another format, or you may be able to find more information, at their web site.Well I have video of my perspective of the earthquake in Idaho. — Unironically Confused (@austriescrypto)But the region hasn't stopped shaking since....

July 8, 2020
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Saturn V, SLS, Falcon Heavy, and Space Shuttle Launch Video

Saturn V, SLS, Falcon Heavy, and Space Shuttle Launch Video

A new video reveals what the launches of four famous spacecraft would look like if the rockets were transparent. Seeing how the sausage is made, so to speak, is mesmerizing.This content is imported from YouTube. You may be able to find the same content in another format, or you may be able to find more information, at their web site.Youtuber posted the video, which also includes audio from the four launches, to YouTube earlier this week. Hazegrayart has a number of other animated videos on their page. (This of Launch Complex 39 at NASA's Kennedy Space Center in Florida from the artist's...

May 18, 2020
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China Rocket Debris | Long March 5B Rocket Falls Back to Earth

China Rocket Debris | Long March 5B Rocket Falls Back to Earth

The large core stage of rocket reentered Earth's atmosphere and plummeted out of control to the surface earlier this week. At 100 feet long and 16 feet wide, it's the largest piece of space junk to fall uncontrolled from low-Earth orbit in almost 30 years.Must-Read RocketsInitial reports suggested the almost 20-ton rocket stage had fallen into the Atlantic Ocean, off the west coast of Africa. But new reports from social media and some African news organizations suggest pieces of the rocket may have been strewn across parts of Cote d'Ivoire. The heavy-lift rocket, which was carrying China's...

May 13, 2020
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Scientists Clone Endangered Species - Black-Footed Ferret

Scientists Clone Endangered Species - Black-Footed Ferret

For the first time, scientists have created a clone of an endangered U.S. species—a black-footed ferret named Elizabeth Ann. The researchers used cells from a donor that had been dead for more than 30 years, and success could mean not only rescue for one of North America’s most endangered mammals, but in conservation biology.After the donor ferret, Willa, died in 1988, scientists sent her cells to the Frozen Zoo at San Diego Zoo Wildlife Alliance in order to preserve her DNA. Their foresight paid off in November 2020, when Willa’s genes were injected into an embryo, zapped “awake” with a...

February 21, 2021
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NASA SpaceX Crew-1 Mission Launch: How to Watch, Live Updates

NASA SpaceX Crew-1 Mission Launch: How to Watch, Live Updates

Update 11/15/2020 7:52 p.m. EST: We have lift-off! At 7:28 p.m. EST, Crew Dragon Resilience lifted off from NASA's Kennedy Space Center in Florida. The four astronauts aboard the spacecraft are now on their way to the International Space Station for a sixth-month mission.Shortly after launch, the first stage separated from the spacecraft and returned to Earth, where it stuck its landing on the droneship Just Read the Instructions.Just after sundown tonight, NASA and Japan's space agency, JAXA, will send four astronauts to the International Space Station (ISS) aboard SpaceX's Falcon 9 rocket...

November 15, 2020
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Asteroid Headed for Earth: When Is God of Chaos Asteroid Coming?

Asteroid Headed for Earth: When Is God of Chaos Asteroid Coming?

Pack your bags, Bruce Willis.A suggests an asteroid named after the Egyptian God of Chaos, Apophis, may get uncomfortably close to Earth in 2068. The scientists tracking the asteroid have discovered that it has sped up, thanks to to an orbital process called the Yarkovsky effect. 🌌 You love our badass universe. So do we. “The new observations we obtained with the Subaru telescope earlier this year were good enough to reveal the Yarkovsky acceleration of Apophis," astronomer Dave Tholen, of the University of Hawaii, said in . "[T]hey show that the asteroid is drifting away from a purely...

October 29, 2020
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Risks of Space Debris Accident | How to Remove Space Junk

Risks of Space Debris Accident | How to Remove Space Junk

Last September, a tiny piece of shrapnel from the body of a Japanese H-2A rocket hurtled toward the (ISS) and its crew at 17,500 miles per hour. An hour before the projected collision, flight controllers back on Earth powered up the spacecraft’s thrusters and moved it out of the way. That scrap of junk could have punched a hole in the hull of the ISS, and it was the station’s third close call in two weeks. Since the Soviet Union launched in 1957, we’ve sent more than 10,000 objects into orbit. As these spacecraft increasingly collide, break apart, or explode, they generate massive clouds of...

October 16, 2020
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