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Astronomy 18 hours ago

Telescope tag-team discovers 10 strange and exotic pulsars

Towards the center of our Milky Way galaxy, in the constellation Sagittarius, astronomers have discovered 10 monstrous neutron stars. These particular stars, called pulsars, reside together in globular cluster Terzan 5, a ...

Astronomy Jul 15, 2024

How astronomers are using pulsars to observe evidence of dark matter

Tantalizing evidence of potential dark matter objects has been detected with the help of the universe's "timekeepers." These pulsars—neutron stars which rotate and emit lighthouse-like beams of radio waves that rapidly ...

Astronomy Jul 11, 2024

Q&A: Researcher discusses how gravitational waves hint at dark matter and Big Bang mysteries

Gravitational waves, ripples in space-time predicted by Einstein almost a century ago, were detected for the first time in 2015. A new study led by Yanou Cui, an associate professor of physics and astronomy at the University ...

Astronomy Jul 11, 2024

Nearest millisecond pulsar has radius of 11.4 kilometers and is 1.4x as heavy as the sun, researchers find

The nearest millisecond pulsar PSR J0437-4715 has a radius of 11.4 kilometers and a mass 1.4 times that of the sun. These are the results of precision measurements made by a team of researchers led by the University of Amsterdam ...

Astronomy Jul 10, 2024

Study investigates the nature of very-high energy gamma-ray source TeV J2032+4130

Using the High-Altitude Water Cherenkov (HAWC) observatory, an international team of astronomers has observed a very-high energy gamma-ray source designated TeV J2032+4130. Results of the observational campaign, presented ...

Astronomy Jul 10, 2024

XL-Calibur telescope launched to study black holes

Scientists from Washington University in St. Louis have launched a balloon-borne telescope to unlock the secrets of astrophysical black holes and neutron stars, some of the most extreme objects in the universe.

Astronomy Jul 6, 2024

Exploring the possibility of probing fundamental spacetime symmetries via gravitational wave memory

As predicted by the theory of general relativity, the passage of gravitational waves can leave a measurable change in the relative positions of objects. This physical phenomenon, known as gravitational wave memory, could ...

Astronomy Jul 1, 2024

Research intern helps discover a new pulsar buried in a mountain of data

U.S. Naval Research Laboratory (NRL) Remote Sensing Division intern Amaris McCarver, along with a team of astronomers, has discovered the first millisecond pulsar in the stellar cluster Glimpse-CO1 and recently published ...

Astronomy Jun 26, 2024

Study reveals twisted origin of dead stars' mysterious 'heartbeats'

Stars blinking code in Netflix's "3 Body Problem" might be science fiction, but by deciphering neutron stars' erratic flickers, a new study has revealed the twisted origin of these dead stars' mysterious "heartbeats."

Astronomy Jun 25, 2024

Astronomers study evolution of a giant outburst in X-ray binary EXO 2030+375

An international team of astronomers has observed an X-ray binary system known as EXO 2030+375. Results of the observation campaign, presented in a research paper published June 18 on the pre-print server arXiv, provide more ...

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