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Astronomy 17 hours ago

Astronomers explore globular cluster NGC 2419

Using the Indian Astronomical Observatory (IAO) and ESA's Gaia satellite, astronomers have explored a galactic globular cluster known as NGC 2419. Results of the study, published April 29 on the preprint server arXiv, shed ...

Astronomy 9 hours ago

Improving timing precision of millisecond pulsars using polarization

Pulsar timing enables the most stringent tests of fundamental physics. By monitoring the pulse times of arrival (ToAs) of an ensemble of stable millisecond pulsars (MSPs), known as a pulsar timing array (PTA), it is possible ...

Astrobiology 12 hours ago

New study delves into ozone's influence on exoplanetary climate

In the quest for life beyond our solar system, a new study delves into the atmospheric dynamics of planet Proxima Centauri b, illuminating ozone's pivotal role in shaping planetary climates. This research signifies a significant ...

Astronomy 6 hours ago

NASA and JAXA XRISM spot iron fingerprints in nearby active galaxy

After starting science operations in February, Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) studied the monster black hole at the center of galaxy NGC 4151.

Astronomy 8 hours ago

Solar max is coming—the sun just released three X-class flares

The sun is increasing its intensity on schedule, continuing its approach to solar maximum. In just over a 24-hour period on May 5 and May 6, 2024, the sun released three X-class solar flares measuring at X1.3, X1.2, and X4.5. ...

Astronomy 8 hours ago

A nebula that extends its hand into space

The Gum Nebula is an emission nebula almost 1400 light-years away. It's home to an object known as "God's Hand" among the faithful. The rest of us call it CG 4.

Astronomy May 7, 2024

New accreting millisecond X-ray pulsar discovered

Astronomers report the discovery of a new pulsar using the Spektr-RG space observatory. The newfound object, designated SRGA J144459.2−604207 (or SRGA J1444 for short), turns out to be a bursting accreting millisecond X-ray ...

Astronomy May 7, 2024

How NASA's Roman mission will hunt for primordial black holes

Astronomers have discovered black holes ranging from a few times the sun's mass to tens of billions. Now a group of scientists has predicted that NASA's Nancy Grace Roman Space Telescope could find a class of "featherweight" ...

Astronomy May 7, 2024

Hubble views a galaxy with a voracious black hole

Bright, starry spiral arms surround an active galactic center in this new NASA Hubble Space Telescope image of the galaxy NGC 4951.

Astronomy May 6, 2024

Radio astronomers bypass disturbing Earth's atmosphere with new calibration technique

An international team of researchers led by astronomers from Leiden University (Netherlands) has produced the first sharp radio maps of the universe at low frequencies. Thanks to a new calibration technique, they bypassed ...

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