Engineers teach spacecraft to ‘dream’ their way to the space station

A Dragon capsule approaching the ISS. Credit - NASA / Chris Cassidy
A Dragon capsule approaching the ISS. Credit – NASA / Chris Cassidy

Docking with the ISS may seem simple. However, actually doing so shows how difficult orbital mechanics can be. It’s like traveling down a highway at 28,000 km/hr (17,000 mph) and parallel parking in an open garage on a multibillion-dollar laboratory traveling at the same speed. If you try to accelerate forward, you actually drift up, and there’s no air friction to naturally slow you down. Oh, and if you hit the lab, everyone aboard both your craft and the station dies, and the resulting debris field could wipe out dozens of satellites and even harm people on the ground. No pressure, obviously.

For decades, aerospace engineers have docked successfully using hard-coded physics equations and human pilots to make correc...

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Dietary supplements may influence lung tumor growth differently in females and males

Dietary supplement may influence lung tumor growth differently in females and males, study finds
Graphical abstract. Credit: Cell Reports (2026). DOI: 10.1016/j.celrep.2026.118052

A study led by researchers at the UCLA Health Jonsson Comprehensive Cancer Center found that a dietary form of a naturally occurring molecule called calcium alphaketoglutarate, or Ca-αKG, reduced lung tumor growth in female mice and activated genes associated with better outcomes in women with lung cancer. The researchers also found that Ca-αKG had the opposite effect in male mice, where it was associated with larger tumors and increased tumor-cell proliferation.

The findings, published in the journal Cell Reports, suggest that Ca-αKG may influence lung cancer primarily through epigenetic changes—chemical modifications that help control which genes are turned on or off—rather than by changing the ca...

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Discovery confirms rare, switchable electrical property in widely used electronics material

A Husker research team’s latest research could open the door to broader use of a class of materials whose electrical properties may someday power next-generation electronics, high-density energy storage, improved computer memory and new strategies for cooling.

In a new paper published in Science, University of Nebraska–Lincoln researchers Xiaoshan Xu, Alexei Gruverman and Evgeny Tsymbal demonstrate that hafnium oxide—a tough, heat-resistant chemical compound used widely in modern electronics—is inherently antiferroelectric, a rare quality found in very few materials. Unlike hafnium oxide, also known as hafnia, many intrinsically antiferroelectric materials contain the toxin lead, which limits their widespread use.

The trio said the discovery will help settle a longstanding...

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Coolest lava world yet with signs of an atmosphere offers clues to early Earth

Lava planet illustration
A newly catalogued planet has been found to have an atmosphere despite how hot it is—giving scientists more clues about how planets form and keep atmospheres.Illustration courtesy NASA

In the search for extraterrestrial life, it makes sense to first look for rocky planets with an atmosphere, like Earth. Without an atmosphere, a planet can’t have surface water. But of the more than 6,300 exoplanets cataloged thus far, the vast majority are not rocky, and only a handful of the rocky worlds appear to have an atmosphere.

In a study published in The Astrophysical Journal Letters, a group led by University of Chicago scientist Brandon Park Coy reports another: a rocky super-Earth 154 light-years away in the constellation Pisces...

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