Category Astronomy/Space

NASA’s Perseverance Rover Is The Inspiration We Need Right Now

Color image of a black metal plaque, depicting line art of the Earth, Mars, and the Sun, on a strut on a Mars rover.
The plaque offers a stylistic nod to the Voyager record covers and the Pioneer plates.
NASA

NASA’s Perseverance rover is on track to launch this summer, and when it does, it will carry the names of nearly 11 million people to Mars.

Earlier this month, as communities around the country locked themselves down in an effort to slow the spread of the novel coronavirus, a team at Kennedy Space Center in Florida started the process of packing the rover for launch. They lowered and locked the rover’s mast, stowed away its robotic arm, and retracted its wheels. But first, they fixed the rover up with the ultimate vanity license plate.

Last year, NASA asked people around the world to submit their names to its “Send Your Name to Mars” program, and 10,932,295 people responded...

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Study supports contested 35-year-old Predictions, shows that observable Novae are just ‘Tip of the Iceberg’

Credit: CC0 Public Domain

Almost 35 years ago, scientists made the then-radical proposal that colossal hydrogen bombs called novae go through a very long-term life cycle after erupting, fading to obscurity for hundreds of thousands of years and then building back up to become full-fledged novae once more. A new study is the first to fully model the work and incorporate all of the feedback factors now known to control these systems, backing up the original prediction while bringing new details to light. Published this week in the journal Nature Astronomy, the study confirms that the novae we observe flashing throughout the universe represent just a few percent of these cataclysmic variables, as they are known, with the rest “hiding” in hibernation.

“We’ve now quantified the suggest...

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Precision Mirrors poised to Improve Sensitivity of Gravitational Wave Detectors

The illustration shows the cross-section of a thermal bimorph mirror and its constituents. Controlling the temperature of the mirror changes the curvature of the reflected wavefront. Overlaid on the cross-section is the simulated radial stress, showing a concentration of stress at the boundary of the two layers, where the adhesive holds the structure together.
Credit: Huy Tuong Cao, University of Adelaide

Improved deformable mirrors could help scientists detect new sources of gravitational waves from deep in space. Researchers have developed a new type of deformable mirror that could increase the sensitivity of ground-based gravitational wave detectors such as the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO)...

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Star Formation Project Maps nearby Interstellar Clouds

Montage of the CO molecule radio emission-line intensities in the three regions observed by the Star Formation Project and the Nobeyama 45 m Radio Telescope.
Montage of the CO molecule radio emission-line intensities in the three regions observed by the Star Formation Project and the Nobeyama 45-m Radio Telescope. (Credit: NAOJ)

Astronomers have captured new, detailed maps of three nearby interstellar gas clouds containing regions of ongoing high-mass star formation. The results of this survey, called the Star Formation Project, will help improve our understanding of the star formation process.

We know that stars such as the Sun are born from interstellar gas clouds. These interstellar gas clouds are difficult to observe in visible light, but emit strong radio wavelength, which can be observed by the Nobeyama 45-m Radio Telescope in Japan...

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