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Categories: Environmental: Wildfires, Space: Exploration

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Seismologists have developed a new method to scan the deep interior of planets in our solar system to confirm whether they have a core at the heart of their existence.

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Until now, Mars has been generally considered a geologically dead planet. An international team of researchers now reports that seismic signals indicate vulcanism still plays an active role in shaping the Martian surface.

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A recently released set of topography maps provides new evidence for an ancient northern ocean on Mars. The maps offer the strongest case yet that the planet once experienced sea-level rise consistent with an extended warm and wet climate, not the harsh, frozen landscape that exists today.

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An international team of astrophysicists has made a puzzling discovery while analyzing certain star clusters. The finding challenges Newton's laws of gravity, the researchers write in their publication. Instead, the observations are consistent with the predictions of an alternative theory of gravity. However, this is controversial among experts.

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As part of NASA's Artemis program to establish a long-term presence on the moon, it aims to build an Artemis base camp that includes a modern lunar cabin, rover and mobile home. This fixed habitat could potentially be constructed with bricks made of lunar regolith and saltwater, thanks to a recent discovery.

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Researchers have developed a new approach to balancing the risks and scientific value of sending planetary rovers into dangerous situations.

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Scientists found that ancient bacteria could survive close to the surface on Mars much longer than previously assumed. So, if life did, in fact, evolve when the last waters flowed on Mars, it would likely still be there today -- billions of years later.

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Prescribed fire -- a tool increasingly used by forest managers and landowners to combat invasive species, improve wildlife habitat and restore ecosystem health -- also could play a role in reducing the abundance of ticks and the transmission of disease pathogens they carry, according to a team of scientists.

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Researchers found thousands of seedlings growing after recent fires in Montana, especially at sites with cooler, damper conditions -- often found in the shade of the dead trees and upper canopy, as well as on the north side of mountains with higher elevations and more undergrowth. Researchers found fewer seedlings at sites with less shade and drier, hotter conditions.

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A new study shows for the first time that wildfires burning in West Coast states can strengthen storms in downwind states. Heat and tiny airborne particles produced by western wildfires distantly intensify severe storms, in some cases bringing baseball-sized hail, heavier rain and flash flooding to states like Colorado, Wyoming, Nebraska, Kansas, Oklahoma, and the Dakotas.

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Using the James Webb Space Telescope to look back in time at the early universe, astronomers discovered a surprise: a cluster of galaxies merging together around a rare red quasar within a massive black hole. The findings offer an unprecedented opportunity to observe how billions of years ago galaxies coalesced into the modern universe.

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Los Angeles is known for its movie stars and beaches. It's also known for being one of only two megacities in the world that supports a population of big cats. Despite being surrounded by a vast network of busy freeways and over ten million people, mountain lions have somehow managed to eke out a living in the wooded LA-area hills. Now, researchers have found that wildfires, and specifically the 2018 Woolsey fire, are putting the LA mountain lions' future in more doubt.

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NASA's James Webb Space Telescope has captured a lush, highly detailed landscape -- the iconic Pillars of Creation -- where new stars are forming within dense clouds of gas and dust. The three-dimensional pillars look like majestic rock formations, but are far more permeable. These columns are made up of cool interstellar gas and dust that appear -- at times -- semi-transparent in near-infrared light.

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A long-term experiment aboard the International Space Station has tested the effect of space radiation on mouse embryonic stem cells. Their findings will contribute to helping scientists better assess the safety and risks related to space radiation for future human space flights.

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Scientists have compiled 41 solar occultation observations of Saturn's rings from the Cassini mission. The compilation will inform future investigations of the particle size distribution and composition of Saturn's rings, key elements to understanding their formation and evolution.

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Astronomers around the world are captivated by an unusually bright and long-lasting pulse of high-energy radiation that swept over Earth Sunday, Oct. 9. The emission came from a gamma-ray burst (GRB) -- the most powerful class of explosions in the universe -- that ranks among the most luminous events known.

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Mission engineers will track NASA's Lucy spacecraft nonstop as it prepares to swoop near Earth on Oct. 16 to use this planet's gravity to set itself on a course toward the Jupiter Trojan asteroids.

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The strong winds and torrential rains that accompany a cyclone do tremendous damage to ecosystems, and this damage can make them more prone to future wildfires. As intense cyclones are projected to become more frequent worldwide, a team of researchers examines the links between cyclones and forest fires, how they fuel one another, and why we may see fires burning in unlikely places in the future.

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Astronomers have made a unique measurement that indicates a jet, plowing through space at speeds greater than 99.97 percent of the speed of light, was propelled by the titanic collision between two neutron stars.

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Analysis of data obtained over the past two weeks by NASA's Double Asteroid Redirection Test (DART) investigation team shows the spacecraft's kinetic impact with its target asteroid, Dimorphos, successfully altered the asteroid's orbit. This marks humanity's first time purposely changing the motion of a celestial object and the first full-scale demonstration of asteroid deflection technology.