UA-113443594-1

Looking for aliens who might be looking for us

IMAGE: Earth-bound astronomers use the transit method--measuring the dim in a star's light when a planet passes directly between the star and its observer--to study planets outside of the Solar System.... view more  Credit: NASA's Jet Propulsion Laboratory UNIVERSITY PARK, Pa. -- Data from a massive search for cosmic radio emission released Feb 14. by the Breakthrough Listen Initiative--the most comprehensive survey yet of radio emissions…

Earth’s cousins: Upcoming missions to look for ‘biosignatures’ in exoplanet atmospheres

Scientists have discovered thousands of exoplanets, including dozens of terrestrial -- or rocky -- worlds in the habitable zones around their parent stars. A promising approach to search for signs of life on these worlds is to probe exoplanet atmospheres for "biosignatures" -- quirks in chemical composition that are telltale signs of life. For example, thanks to photosynthesis, our atmosphere is nearly 21% oxygen, a…

Breakthrough Listen releases 2 petabytes of data from SETI survey of...

The Breakthrough Listen Initiative today (Friday, Feb. 14) released data from the most comprehensive survey yet of radio emissions from the plane of the Milky Way Galaxy and the region around its central black hole, and it is inviting the public to search the data for signals from intelligent civilizations. At a media briefing today in Seattle as part of the annual meeting of the…

NASA Highlights Science on 20th SpaceX Resupply Mission to Space Station

NASA will host a media teleconference at 1 p.m. EST Thursday, Feb. 20, to discuss select science investigations launching on the next SpaceX commercial resupply flight to the International Space Station.

ESO telescope sees surface of dim Betelgeuse

IMAGE: The red supergiant star Betelgeuse, in the constellation of Orion, has been undergoing unprecedented dimming. This stunning image of the star's surface, taken with the SPHERE instrument on ESO's Very... view more  Credit: ESO/M. Montargès et al. Using ESO's Very Large Telescope (VLT), astronomers have captured the unprecedented dimming of Betelgeuse, a red supergiant star in the constellation of Orion. The stunning new images of…

Solar wind samples suggest new physics of massive solar ejections

IMAGE: An image of active regions on the Sun from NASA's Solar Dynamics Observatory. The glowing hot gas traces out the twists and loops of the Sun's magnetic field lines.... view more  Credit: NASA Solar Dynamics Observatory/ AIA A new study led by the University of Hawai'i (UH) at Mānoa has helped refine understanding of the amount of hydrogen, helium and other elements present in violent…

Galactic cosmic rays affect Titan’s atmosphere

IMAGE: Optical image of Titan taken by NASA Cassini spacecraft. view more  Credit: NASA/JPL-Caltech/Space Science Institute Planetary scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) revealed the secrets of the atmosphere of Titan, the largest moon of Saturn. The team found a chemical footprint in Titan's atmosphere indicating that cosmic rays coming from outside the Solar System affect the chemical reactions involved in the formation of…

Kazan University’s telescope assists in discovering a binary star system

IMAGE: Location of Gaia16aye on the sky. Images from Mellinger and DSS were obtained using the Aladin tool. view more  Credit: Warsaw University A co-author from Kazan University, Professor, Corresponding Member of the Tatarstan Academy of Sciences, Chair of the Department of Astronomy and Space Geodesy Ilfan Bikmaev, explains how the new system was found. "The gravitational lensing method is one of the most powerful space…

Electric solid propellant — can it take the heat?

IMAGE: Image from NASA of a material ablation test view more  Credit: NASA Electric solid propellants are being explored as a safer option for pyrotechnics, mining, and in-space propulsion because they only ignite with an electric current. But because all of these applications require high heat, it's important to understand how the high temperatures change the propellants' chemistry. Researchers from the University of Illinois at Urbana-Champaign,…

A close-up of Arrokoth reveals how planetary building blocks were constructed

The farthest, most primitive object in the Solar System ever to be visited by a spacecraft - a bi-lobed Kuiper Belt Object known as Arrokoth - is described in detail in three new reports. The reports expand upon the first published results on this object, announced in a May 2019 issue of Science, and which were based on just a small amount of data downlinked…
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