Are Artificial Sweeteners Healthier Than Sugar or No? Here's What Experts Think
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Are Artificial Sweeteners Healthier Than Sugar or No? Here's What Experts Think
Saccharin – the first artificial sweetener - was discovered by accident when, in 1879, Professor Ira Remsen from Johns Hopkins University noticed a sweet substance on his hands after experimenting with different chemicals in the laboratory.
A spacesuit floated away from the International Space Station 15 years ago, but no investigation was conducted.
Everyone knew that it was pushed by the space station crew. Dubbed Suitsat-1, the unneeded Russian Orlan spacesuit filled mostly with old clothes was fitted with a faint radio transmitter and released to orbit the Earth. The suit circled the Earth twice before its radio signal became unexpectedly weak. Suitsat-1 continued to orbit every 90 minutes until it burned up in the Earth's atmosphere after a few weeks. Pictured, the lifeless spacesuit was photographed in 2006 just as it drifted away from space station.
Photo (APOD)
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Everyone knew that it was pushed by the space station crew. Dubbed Suitsat-1, the unneeded Russian Orlan spacesuit filled mostly with old clothes was fitted with a faint radio transmitter and released to orbit the Earth. The suit circled the Earth twice before its radio signal became unexpectedly weak. Suitsat-1 continued to orbit every 90 minutes until it burned up in the Earth's atmosphere after a few weeks. Pictured, the lifeless spacesuit was photographed in 2006 just as it drifted away from space station.
Photo (APOD)
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A Telescope Sunk Into World's Deepest Lake Has Started The Hunt For 'Ghost Particles'
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A Telescope Sunk Into World's Deepest Lake Has Started The Hunt For 'Ghost Particles'
A new telescope below the surface of the world's deepest lake has commenced a hunt for the Universe's most elusive particles.
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NASA’s Future Telescopes Will Float at the Edge of Space
NASA wants a new type of space telescope. A team of scientists and engineers at NASA are developing ways to send ultra cold and ultra large balloon telescopes to the edge of space, which could open up a brand new way of seeing the cosmos.
You can do more science in a single balloon flight than you could do from years and years of observing from any of these existing observatories. You can take technology risks on a balloon that would never be able to take on a space mission. So, you can do all kinds of crazy things.
Video (Seeker) | Stream on Youtube
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NASA wants a new type of space telescope. A team of scientists and engineers at NASA are developing ways to send ultra cold and ultra large balloon telescopes to the edge of space, which could open up a brand new way of seeing the cosmos.
You can do more science in a single balloon flight than you could do from years and years of observing from any of these existing observatories. You can take technology risks on a balloon that would never be able to take on a space mission. So, you can do all kinds of crazy things.
Video (Seeker) | Stream on Youtube
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An Earth Impact From a Notorious Asteroid Was Just Ruled Out by Astronomers
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Phew, an Earth Impact From a Notorious Asteroid Was Just Ruled Out by Astronomers
When it comes back around again in 2068, the asteroid Apophis will have practically no chance of hitting Earth.
Scientists Discover a Hidden Law Behind The Pointy Bits on All Living Things
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Scientists Discover a Hidden Law Behind The Pointy Bits on All Living Things
Scientists have identified a new rule of growth that shapes the form and development of pointy or sharp biological structures in animals and plants, such as teeth, horns, claws, beaks, and thorns.
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Mars Helicopter Prepares for Takeoff
Beginning April 2021, the window opens for the first flight of NASA’s Ingenuity Mars Helicopter. It will be history’s first attempt at powered, controlled flight on another planet. Ingenuity arrived at Mars on February 18, 2021, riding along with NASA’s Perseverance rover. The duration of Ingenuity’s mission is 30 days, where one or more test flights will be attempted.
As a technology demonstration, Ingenuity is testing a new capability for the first time: showing controlled flight is possible in the very thin Martian atmosphere. If successful, Ingenuity could lead to an aerial dimension to space exploration, aiding both robots and humans in the future.
Video (NASA) | Stream on YouTube
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Beginning April 2021, the window opens for the first flight of NASA’s Ingenuity Mars Helicopter. It will be history’s first attempt at powered, controlled flight on another planet. Ingenuity arrived at Mars on February 18, 2021, riding along with NASA’s Perseverance rover. The duration of Ingenuity’s mission is 30 days, where one or more test flights will be attempted.
As a technology demonstration, Ingenuity is testing a new capability for the first time: showing controlled flight is possible in the very thin Martian atmosphere. If successful, Ingenuity could lead to an aerial dimension to space exploration, aiding both robots and humans in the future.
Video (NASA) | Stream on YouTube
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NASA's Ingenuity helicopter can be seen here with all four of its legs deployed before dropping from the belly of the Perseverance rover on March 30th, the 39th Martian day, or sol, of the mission. This image was taken by the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) camera on the SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals) instrument, located at the end of the rover's long robotic arm.
Photo (NASA) | #Mars2020
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Photo (NASA) | #Mars2020
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An Exploding Star 65 Light-Years Away From Earth May Have Triggered a Mass Extinction (Updated)
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An Exploding Star 65 Light-Years Away From Earth May Have Triggered a Mass Extinction
Life was trying, but it wasn't working out. As the Late Devonian period dragged on, more and more living things died out, culminating in one of the greatest mass extinction events our planet has ever witnessed, approximately 359 million years ago.
NASA's Mars Perseverance rover has deployed Ingenuity onto the ground then began driving away to allow the helicopter's solar panels to start functioning. The first ever powered flight on another planet is fast approaching.
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Photo 3 | #Mars2020
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Detecting This Specific Gas in an Alien World's Atmosphere May Be a Good Sign of Life
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Detecting This Specific Gas in an Alien World's Atmosphere May Be a Good Sign of Life
It is no exaggeration to say that the study of extrasolar planets has exploded in recent decades. To date, 4,375 exoplanets have been confirmed in 3,247 systems, with another 5,856 candidates awaiting confirmation.
NASA’s Mars Helicopter Survives First Cold Martian Night on Its Own
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NASA’s Mars Helicopter Survives First Cold Martian Night on Its Own
Making it through the frigid Martian temperatures after being deployed by NASA’s Perseverance rover is a major milestone for the small rotorcraft. NASA’s Ingenuity Mars Helicopter has emerged from its first night on the surface of Mars. Evening temperatures…
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SpaceX Crew Dragon spacecraft relocated on space station
SpaceX Crew Dragon 'Resilience' was relocated from the forward facing port of the Harmony module to the space-faring port to make way for the arrival of the Crew-2 mission. SpaceX Crew-1 astronauts Mike Hopkins, Victor Glover, Shannon Walker and Soichi Noguchi were aboard the spacecraft for the relocation.
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SpaceX Crew Dragon 'Resilience' was relocated from the forward facing port of the Harmony module to the space-faring port to make way for the arrival of the Crew-2 mission. SpaceX Crew-1 astronauts Mike Hopkins, Victor Glover, Shannon Walker and Soichi Noguchi were aboard the spacecraft for the relocation.
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