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Calif. city expands rules to allow code enforcement officers to enter porches, driveways without warrant

The Fresno City Council changed city law to allow officers to enter areas of private property considered public without a warrant for code enforcement purposes

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Terraforming Mars: Modeling engineered aerosols to warm the planet

Whenever humans arrive on Mars, they’re going to find it a difficult place to exist. Mars is cold, with an average surface temperature of -55°C; temperatures can plunge to -125°C with dust storms lasting months; its atmosphere is very thin and almost all carbon dioxide; and all the water is frozen and mixed with ice made of CO2. Oh, and solar radiation will be hazardous on Mars’ surface since the planet has no ozone layer to block ultraviolet radiation, especially so during solar flares. Disneyland it is not.

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NASA is shooting for the moon. A guide to the Artemis II mission

It’s humanity’s first flight to the moon since 1972.

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Astronomers determine the fate of a double white dwarf binary

Utilizing the stellar evolution code named Modules for Experiments in Stellar Astrophysics (MESA), Chinese astronomers have investigated the evolution of a recently discovered ultra-compact double white dwarf binary system known as ATLAS J1138-5139. Results of this study, published March 20 on the arXiv pre-print server, allowed the researchers to determine the fate of this system.

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‘A very big deal’: Canadian astronaut reflects on historic moon mission

As soon as Wednesday, NASA is poised to make history—sending the first woman, the first person of color, and the first non-American on a voyage around the moon.

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NASA begins the countdown for humanity’s first launch to the moon in 53 years

NASA began the countdown Monday for humanity’s first launch to the moon in 53 years.

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Legged robot could accelerate resource prospecting on the moon and the search for life on Mars

Planetary surface missions currently operate cautiously. On Mars, communication delays between Earth and rovers (typically between four and 22 minutes), as well as data transfer constraints due to uplink and downlink limitations, force scientists to plan operations in advance. Rovers are designed for energy efficiency and safety, and to move slowly across hazardous terrain.

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How the solar wind really works

The sun, our nearest star, never stops breathing. Every second of every day, it exhales a vast stream of charged particles that sweeps outward through the solar system at hundreds of kilometers per second. We call it the solar wind, and while that name conjures something gentle and constant, the reality is considerably more turbulent.

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Mars-like worlds near M-dwarfs may lose air in millions of years

The criteria for finding an Earth-like planet unofficially comes down to two things: water and the habitable zone. But a phenomenon known as atmospheric escape often “escapes” the minds of many astronomy fans, and it turns out that atmospheric escape is one of the key characteristics for finding an Earth-like world. Although extensive research has been conducted on how the planet Mars might have lost its atmosphere, and potentially the ability to sustain life, how would the atmosphere enveloping a Mars-like exoplanet respond to stars different from our own?

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Spaceflight captures audiences when it centers on people because human space travel is hazardous

The central premise of the blockbuster film “Project Hail Mary” is a long-shot mission with a familiar goal: Save humanity from extinction. While the details of the threat facing humanity are new to this story, moviegoers are used to binging on popcorn while watching a heroic quest to save Earth from certain doom. And like so many popular movies of this genre, from “Armageddon” to “Interstellar,” the hero’s journey involves a seemingly impossible mission into space.

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Heat shield safety concerns raise stakes for NASA’s Artemis II moon mission

The astronauts Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen are preparing to launch into space on a trajectory that will make them the first humans to travel to the moon in over half a century.

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Image: NISAR’s View of Mount Rainier

This image captured by U.S.-Indian Earth satellite NISAR on Nov. 10, 2025, shows Washington’s Mount Rainier. The image is cropped from a much larger swath spanning the Pacific Northwest on a cloudy day; NISAR’s L-band SAR instrument is able to peer through the clouds at the surface below.

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NASA wants to build a base on the Moon by the 2030s, How and why it plans to build up to a long‑term lunar presence

The next U.S. trip to the moon isn’t about planting a flag. It’s about learning how to live and work there. NASA has just reset its Artemis program, marking a clear strategic shift: Space exploration is moving away from a race to achieve milestones and toward a system built on repeated operations, a sustained presence and lunar infrastructure that could become part of the technology networks we rely on here on Earth.

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Strained liquid crystals steer soliton ‘bullets’ along two diagonal paths

In physics, some waves behave in a surprising way: instead of spreading out and fading, they hold their shape as they travel at constant speeds. These unusual waves, called solitons, have interested scientists since they were first observed in canals in the 19th century. Today, researchers study solitons in everything from optical fibers to biological systems.

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Minn. county leader proposes defunding sheriff’s office for public safety coverage

More than 40 police chiefs and mayors wrote to protest the Hennepin County commissioner’s statement that she was “not willing to fund the sheriff’s office for public safety”

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