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Archive for the ‘space’ category: Page 247

Feb 20, 2023

Detecting asteroids near the sun with NEOMIR

Posted by in category: space

Spotting asteroids near the sun

Astronomers have gotten good at detecting even small asteroids that might be headed toward Earth. But an unknown number of asteroids have paths that might carry them toward us from the sun’s direction. And it’s tough – or impossible – to spot those asteroids coming toward us. ESA’s planned NEOMIR mission will orbit between Earth and the sun at the first Lagrange point (L1). It’ll act as an early warning system for asteroids – 65 feet (20 meters) and larger – that instruments on Earth’s surface cannot see.

NEOMIR stands for Near-Earth Object Mission in the Infrared.

Feb 20, 2023

The Dream of Space Mining Remains Illusory at Present

Posted by in category: space

AstroForge plans to mine asteroids, not for gold, but for platinum and other high-value metals. Will it succeed where others haven’t?

Feb 19, 2023

Scientists reveal ‘invisible’ galaxy from the early universe, using space-time trick predicted by Einstein

Posted by in category: space

Using the ALMA telescope in Chile and Einstein’s theory of relativity, scientists observed a young galaxy in the early universe that is invisible in nearly every wavelength.

Feb 19, 2023

Moon landings: Astronomers to track and catalog lunar debris in a ‘world first’

Posted by in categories: government, space

Scientists and government agencies have been worried about the space junk surrounding Earth for decades. But humanity’s starry ambitions are farther reaching than the space just around Earth.

Feb 19, 2023

NASA Funds Disruptive Space Tech To Detect Very Nearby ExoEarths

Posted by in categories: innovation, space

A disruptive new planet-hunting technology, now under study as part of NASA’s Innovative Advanced Concepts (NIAC) program, could literally detect and then look for biosignatures from every Earth 2.0 within a thirty-light-year radius of our solar system.

Known as DICER (The Diffractive Interfero Coronagraph Exoplanet Resolver), the key to this NIAC study’s revolutionary means of detecting these planets is that unlike conventional optical space telescopes — which use curved, highly polished mirrors to collect starlight — this mission would employ flat sets of what are known as diffraction gratings.


Who says you need a conventional telescope to find exoplanets? NASA has funded a ‘Phase I’ study for the development of a whole new means of detecting and then teasing spectra from very nearby exoplanetary earths.

Continue reading “NASA Funds Disruptive Space Tech To Detect Very Nearby ExoEarths” »

Feb 19, 2023

Chance encounters: Mercury probe and sun spacecraft provide new info about Venus

Posted by in category: space

Data from BepiColombo and Solar Orbiter during Venus gravity assists reveal how a magnetic field protects the Venusian atmosphere.

Feb 19, 2023

Physicists mimic gravity inside the sun using sound waves

Posted by in categories: physics, space

The acoustically generated force will help astronomers better understand the sun’s photosphere and the causes of space weather.

Feb 19, 2023

Why are there so few ‘hot Neptune’ exoplanets?

Posted by in category: space

There’s apparently a dearth of close-orbiting Neptune-size planets in our galaxy, and two observation techniques are starting to explain why.

Feb 19, 2023

3 Reasons Technosignatures Detected by AI-Trained Algorithm Can Be Extraterrestrial Activities

Posted by in categories: information science, robotics/AI, space

Astronomers picked up extraterrestrial signals which they previously missed in an area they thought was devoid of potential ET activity. It could be the first hint that humans are not alone in the universe.

Mysterious Signals Detected

Continue reading “3 Reasons Technosignatures Detected by AI-Trained Algorithm Can Be Extraterrestrial Activities” »

Feb 19, 2023

Megastructures: Isaac arthur playlist

Posted by in categories: habitats, space

A video series looking at concepts for truly huge structures that we might see in the future. We begin with ground-based and Low Orbit structures to help us get up into space and proceed up through artificial habitats and planets to structures which encompass stars and can even move them. Audio-only version for mobile devices available at: https://soundcloud.com/isaac-arthur-148927746/sets/

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