Searching for habitable worlds beyond our solar system involves more than having a planet orbit within its star’s habitable zone, the region where temperatures could be just right for liquid water to exist on the surface. On Earth, where water comprises approximately 75% of the planet’s surface, life is abundant. But what about the exoplanet’s […]

Exoplanet atmospheres have become prime targets for astrobiologists in the search for life beyond Earth. This is because exoplanet surfaces can’t be directly imaged yet, so astronomers must get creative in how they search for signs of life, also called biosignatures. Presently, powerful ground- and space-based telescopes like the Atacama Large Millimeter Array (ALMA) and […]

Imagine a piece of space debris the size of a hockey puck slams into a Starlink satellite at about 10 kilometers per second. The kinetic energy is equivalent to 2 kilograms of TNT, or a fully loaded semitruck traveling at 100 kilometers an hour.

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Seventy years ago, Earth had only one satellite: the moon. Now it has more than 15,000—about 10,000 of which are owned by Elon Musk’s SpaceX. The world’s first trillionaire plans to launch 1 million more satellites, each roughly 70 meters (230 feet) long and 20 meters (66 feet) wide, that would form a data center […]

A new study by a doctoral researcher at The University of Alabama in Huntsville (UAH), part of The University of Alabama System, suggests global dust storms on Mars may organize the Martian atmosphere into regions favorable for electrical activity, increasing the potential for electrostatic discharges that could affect missions to the red planet by interfering […]

Saturn’s moon Enceladus has become a prime solar system target for astrobiologists. This is because the small moon, which is just over 10% the diameter of Earth’s moon, harbors a vast subsurface ocean beneath its icy crust. This subsurface ocean, combined with the geysers at Enceladus’ south pole that discharge bits of this ocean into […]

When it comes to drought stress, timing can be the difference between saving a crop and losing it, whether in a greenhouse or in the high-stakes environment of future space missions. In a recent study published in Plant Phenomics, researchers with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), the United States […]

Research has shed new light on why some distant galaxies suddenly stop forming stars. An international team led by astronomers at the University of Nottingham has used the James Webb Space Telescope to study a large sample of recently “quenched” galaxies in the distant universe, observed around nine billion years ago. Their findings appear in […]