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Analytical Chemistry Apr 25, 2024

Chemical rope trick at molecular level: Mechanism research helps when 'trial and error' fails

In most industrial chemical reactions, catalysts combine with the starting materials and accompany them through intermediate stages to the product. In chemistry, this pathway is known as the reaction mechanism, and it is ...

Ecology Apr 25, 2024

How do birds flock? Researchers do the math to reveal previously unknown aerodynamic phenomenon

In looking up at the sky during these early weeks of spring, you may very well see a flock of birds moving in unison as they migrate north. But how do these creatures fly in such a coordinated and seemingly effortless fashion?

Astronomy Apr 24, 2024

NASA's Chandra releases timelapse movies of Crab Nebula and Cassiopeia A

New movies of two of the most famous objects in the sky—the Crab Nebula and Cassiopeia A—are being released from NASA's Chandra X-ray Observatory. Each includes X-ray data collected by Chandra over about two decades. ...

Plants & Animals Apr 24, 2024

Artificial intelligence helps scientists engineer plants to fight climate change

The Intergovernmental Panel on Climate Change (IPCC) has declared that removing carbon from the atmosphere is now essential to fighting climate change and limiting global temperature rise. To support these efforts, Salk Institute ...

Space Exploration Apr 24, 2024

Pushing the limits of sub-kilowatt electric propulsion technology for space mission concepts

NASA has developed an advanced propulsion technology to facilitate future planetary exploration missions using small spacecraft. Not only will this technology enable new types of planetary science missions, one of NASA's ...

Astrobiology Apr 24, 2024

A NASA rover has reached a promising place to search for fossilized life on Mars

While we go about our daily lives on Earth, a nuclear-powered robot the size of a small car is trundling around Mars looking for fossils. Unlike its predecessor Curiosity, NASA's Perseverance rover is explicitly intended ...

Materials Science Apr 24, 2024

Researchers show it's possible to teach old magnetic cilia new tricks

Magnetic cilia—artificial hairs whose movement is powered by embedded magnetic particles—have been around for a while, and are of interest for applications in soft robotics, transporting objects and mixing liquids. However, ...

Planetary Sciences Apr 24, 2024

Signs of 'spider' phenomenon on Mars

ESA's Mars Express has snapped the telltale traces of "spiders" scattered across the southern polar region of Mars.

Astronomy Apr 24, 2024

See the Southern Ring Nebula in 3D

Planetary nebula are some of nature's most stunning visual displays. The name is confusing since they're the remains of stars, not planets. But that doesn't detract from their status as objects of captivating beauty and intense ...

Environment Apr 24, 2024

Will the US ban the use of single-use plastics like England, India, Hong Kong and other countries?

Madhavi Venkatesan, associate teaching professor of economics at Northeastern University, is convinced that human convenience is an expense the environment cannot afford.

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