Category Astronomy/Space

Mars’ Infamous Dust Storms can Engulf the Entire Planet: A new study examines how

Illustration of the surface of Mars with dust clouds billowing in the distance and crackling with lightning
Artist’s depiction of a dust storm on Mars. (Credit: NASA)

Dust storms on Mars could one day pose dangers to human astronauts, damaging equipment and burying solar panels. New research gets closer to predicting when extreme weather might erupt on the Red Planet.

Today’s weather report on Mars: Windy with a chance of catastrophic dust storms blotting out the sky.

In a new study, planetary scientists at the University of Colorado Boulder have begun to unravel the factors that kick off major dust storms on Mars — weather events that sometimes engulf the entire planet in swirling grit. The team discovered that relatively warm and sunny days may help to trigger them.

Heshani Pieris, lead author of the study, said the findings are a first step toward forecasting extreme weather on M...

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Astronomers Discover More Dark Comets

This artist’s concept shows interstellar object 1I/2017 U1 (‘Oumuamua) after its discovery in 2017. While itself not a dark comet, ‘Oumuamua’s motion through the solar system has helped researchers better understand the nature of the 14 dark comets discovered so far.
European Southern Observatory / M. Kornmesser

The first dark comet—a celestial object that looks like an asteroid but moves through space like a comet—was reported less than two years ago. Soon after, another six were found...

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Switchbacks: Solar Jets may hold the Key for Understanding Complete Magnetic Field Reversals

Switchbacks: Could solar jets hold the key ?
Simulation domain and magnetic topology. Top left: 3D volume of the domain of the simulation with the root blocks of the grid. Bottom left: A 2D cross section at constant angle of ϕ = 0° of the velocity color at t = 5500 s. This snapshot highlights the spatial distribution of the velocity. The grid block boundaries are delineated by gray lines. Each block contains 8 × 8 × 8 cells. Right: Initial magnetic topological structure. The isosurface of plasma β = 20 (red spheroid) indicates the location of the 3D magnetic null point. Magnetic field lines of distinct connectivity bounding the separatrix surface are represented, either closed (white field lines) or open to the heliosphere (blue field lines). Credit: Astronomy & Astrophysics (2024). DOI: 10...
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MAUVE: An Ultraviolet Astrophysics Probe Mission Concept

For the past 30 years, NASA’s Great Observatories—the Hubble, Spitzer, Compton, and Chandra space telescopes—have revealed some amazing things about the universe. In addition to some of the deepest views of the universe provided by the Hubble Deep Fields campaign, these telescopes have provided insight into the unseen parts of the cosmos—i.e., in the infrared, gamma-ray, and ultraviolet spectrums.

With the success of these observatories and the James Webb Space Telescope (JWST), NASA is contemplating future missions that would reveal even more of the “unseen universe.”

This includes the UltraViolet Explorer (UVEX), a space telescope NASA plans to launch in 2030 as its next Astrophysics Medium-Class Explorer mission...

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