investigates

Study investigates 'virgin birth' in aquarium sharks, even when potential mates are nearby

Study investigates ‘virgin birth’ in aquarium sharks, even when potential mates are nearby

An adult zebra shark at the Shedd Aquarium’s Wild Reef exhibit. Credit: Shedd Aquarium / Brenna Hernandez Asexual reproduction is common in animals like starfish, deep-sea worms, and stick insects, but in vertebrates it is a rarity. A process called parthenogenesis allows some females to fertilize an egg with their own genetic material, producing offspring …

Study investigates ‘virgin birth’ in aquarium sharks, even when potential mates are nearby Read More »

A study investigates the pulsations of the millisecond pulsar PSR J1023+0038

A study investigates the pulsations of the millisecond pulsar PSR J1023+0038

Aqueye+ light curve of PSR J1023+0038 observed in January 2020, grouped every 10 s. The count rate is normalized to the maximum count rate. The vertical colored region indicates the visually identified flaring interval. Credit: Illiano et al, 2022 European astronomers have made X-ray and optical observations of a transient millisecond pulsar known as PSR …

A study investigates the pulsations of the millisecond pulsar PSR J1023+0038 Read More »