Archive for the ‘space’ category: Page 2

Aug 9, 2020

Space calendar 2020: Never miss another launch, meteor shower or celestial event again

Posted by in category: space

Space calendar 2020: Upcoming rocket launches, meteor showers, Mars missions and more!

Here’s everything significant happening in space science and solar system exploration for the rest of the year.

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Aug 9, 2020

#SpaceWatchGL Opinion: Space Traffic Management – Impact of Large Constellations on Military Operations in Space

Posted by in categories: military, policy, space, sustainability

#SpaceWatchGL Opinion: Space Traffic Management – Impact of Large Constellations on Military Operations in Space.

🌚 #SpaceWatchGL

As part of the partnership between SpaceWatch. Global and Joint Air Power Competence Centre, we have been granted permission to publish selected articles and texts. We are pleased to present “Space Traffic Management – Impact of Large Constellations on Military Operations in Space”, originally published by the Joint Air Power Competence Centre for the Conference Read Ahead 2020.

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Aug 9, 2020

Jupiter’s huge moon Ganymede may have the largest impact scar in the solar system

Posted by in category: space

Scientists have discovered what they believe may be the largest impact crater in the entire solar system, with scars covering a vast portion of Jupiter’s huge moon, Ganymede.

Aug 9, 2020

The Force of Nothingness Has Been Used to Manipulate Objects

Posted by in categories: chemistry, physics, space

Scientists can use some pretty wild forces to manipulate materials. There’s acoustic tweezers, which use the force of acoustic radiation to control tiny objects. Optical tweezers made of lasers exploit the force of light. Not content with that, now physicists have made a device to manipulate materials using the force of… nothingness.

OK, that may be a bit simplistic. When we say nothingness, we’re really referring to the attractive force that arises between two surfaces in a vacuum, known as the Casimir force. The new research has provided not just a way to use it for no-contact object manipulation, but also to measure it.

The implications span multiple fields, from chemistry and gravitational wave astronomy all the way down to something as fundamental and ubiquitous as metrology — the science of measurement.

Aug 8, 2020

Mysterious ‘fast radio burst’ detected closer to Earth than ever before

Posted by in category: space

Most FRBs originate hundreds of millions of light-years away. This one came from inside the Milky Way.

Aug 7, 2020

NASA’s Mars Helicopter Could Revolutionize Off-Planet Exploration

Posted by in category: space

After decades of landers, probes, and rovers, NASA is ready to take to the skies.

Aug 7, 2020

Mars map with water: incredible terraforming image shows Elon Musk’s dream

Posted by in categories: Elon Musk, engineering, environmental, space

A new map shows what the red planet would look like if 71 percent of its surface area was covered with water — around the same proportion as Earth.

Aug 6, 2020

Perseid meteor shower promises big show for stargazers

Posted by in category: space

ST. LOUIS (KTVI) — The Perseid meteor shower is now underway and is about one week from its mid-August peak.

Considered the best meteor shower of the year, you can see up to 50 meteors per hour, according to NASA, and sometimes even more if conditions are right. The fast and bright meteors often leave long wakes of light behind them as they streak through the atmosphere, making them easy to see even for the casual astronomer.

The Perseids get their name from the constellation Perseus because they appear to radiate from that spot in the sky, but the constellation isn’t the source. When comets come around the sun, they leave a dusty trail behind them. This time each year, Earth passes by debris from the comet Swift-Tuttle, which burns up in our atmosphere.

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Aug 6, 2020

Next week, NASA’s OSIRIS-REx Asteroid Sample Return Mission will practice touching asteroid Bennu one last time before its big moment

Posted by in category: space

The 4-hour excursion will bring the spacecraft to just 131 ft (40 m) above Bennu.

Here’s a preview of the rehearsal:

Aug 6, 2020

Uncovering our solar system’s shape

Posted by in categories: materials, space

Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions.

All the planets of our are encased in a magnetic bubble, carved out in space by the Sun’s constantly outflowing material, the . Outside this bubble is the interstellar medium—the ionized gas and magnetic field that fills the space between stellar systems in our galaxy. One question scientists have tried to answer for years is on the shape of this bubble, which travels through space as our Sun orbits the center of our galaxy. Traditionally, scientists have thought of the as a comet shape, with a rounded leading edge, called the nose, and a long tail trailing behind.

Research published in Nature Astronomy in March and featured on the journal’s cover for July provides an alternative shape that lacks this long tail: the deflated croissant.

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