"This discovery heralds a broader understanding of the diversity in massive stars' deaths and a need for deeper ...

Two international teams zoned in on a potential answer to a decades-long mystery surrounding ephemeral cosmic X-rays.

This hidden matter has been mapped using FRBs, intense millisecond-long pulses from galaxies located far away. With the help of 70 FRBs, which included one from 9 billion light years away, the ...

What this team found was that X-rays from 1E 1841-045 become increasingly polarized at higher energy levels. Yet the X-rays kept the same polarization angle throughout this ramping up of energy ...

Using NASA's Imaging X-ray Polarimetry Explorer (IXPE) spacecraft, astronomers have made detailed observations of a highly magnetic dead star or "magnetar" as it threw a massive tantrum. The ...