NASA's retired Compton mission reveals superheavy neutron stars

Astronomers studying archival observations of powerful explosions called short gamma-ray bursts (GRBs) have detected light patterns indicating the brief existence of a superheavy neutron star shortly before it collapsed into ...

Information carrying could be improved through hopfions

The knot theory originates in Lord Kevin's model proposed in 1867 that atoms are made of vortex rings or knots. Although the hypothesis was proved incorrect, the knot theory has since then proliferated in both mathematics ...

Seeing how a spacecraft dies

This simulation of ESA's Automated Transfer Vehicle (ATV) space truck reentering Earth's atmosphere starts by representing the surrounding of the spacecraft as a three-dimensional cloud of interconnected points, a so-called ...

Study finds ultimate limits of spaceplates in optical systems

Engineers working to miniaturize optical systems for modern electronics have seen great success when it comes to the most familiar components, the lenses and optical sensors. It's been more challenging to reduce the size ...

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