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space flight

Technology

How the XB-1 aircraft went supersonic without a sonic boom

When the experimental XB-1 aircraft achieved supersonic speeds on a test flight, it did not create a disruptive sonic boom – thanks to a physics phenomenon called the Mach cutoff

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Space

Distant exoplanet may be the most volcanic world ever found

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Space

How meteorites are rewriting the history of the solar system

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Space

Astronomers have spotted the largest known object in the universe

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Physics

The 100-year-old symmetry theorem that is still changing physics today

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The best new science fiction books of February 2025

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The best new science fiction books of February 2025

Culture

These interstellar spaceship designs are wildly impractical

Space

These interstellar spaceship designs are wildly impractical

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Technology

Experimental XB-1 aircraft goes supersonic for the first time

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Caption This image from NASA?s James Webb Space Telescope shows a portion of the Leo P dwarf galaxy (stars at lower right represented in blue). Leo P is a star-forming galaxy located about 5 million light-years away in the constellation Leo. A team of scientists collected data from about 15,000 stars in Leo P to deduce its star formation history. They determined that it went through three phases: an initial burst of star formation, a ?pause? that lasted several billion years, and then a new round of star formation that is still continuing. The image from Webb?s NIRCam (Near-Infrared Camera) combines infrared light at wavelengths of 0.9 microns (represented in blue), 1.5 microns (green), and 2.77 microns (red). The stars in Leo P appear blue in comparison to the background galaxies for several reasons. Young, massive stars that are common in star-forming galaxies are predominantly blue. Leo P also is extremely lacking in elements heavier than hydrogen and helium, and the resulting ?metal-poor? stars tend to be bluer than Sun-like stars. A bubble-like structure at bottom center is a region of ionized hydrogen surrounding a hot, massive O-type star. Credits Image NASA, ESA, CSA, Kristen McQuinn (STScI) Image Processing Joseph DePasquale (STScI)

Space

James Webb captures a beautiful smattering of blue stars

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The physicist trying to build humanity's lunar future with moon dirt

Space

The physicist trying to build humanity's lunar future with moon dirt

When it comes to sending humans back to the moon, knowing how to work with the regolith that coats the ground will be make-or-break. Phil Metzger is studying how to mitigate its dangers and use it as a crucial resource

Features

Space

Incredible images show the moment SpaceX's Starship exploded

Regulars

Space

See comet C/2024 G3 (ATLAS) as viewed from Earth's orbit

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Space

The physicist on a mission to understand Mercury's epic solar storms

Features

Space

BepiColombo snaps Mercury's dark craters and volcanic plains

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