Galileo Sunspot Sketches Versus Modern ‘Deep Learning’ AI

Galileo Sunspot Sketches Versus Modern ‘Deep Learning’ AI A new study turns modern ‘deep learning’ techniques on Galileo’s early sketches of the Sun. It’s a fascinating thought to consider. What exactly did the Sun look like, centuries ago? What would we see, if astronomers back in the time of Kepler and Galileo had modern technology […]

Study explores extremely luminous infrared galaxy WISEJ0909+0002

Study explores extremely luminous infrared galaxy WISEJ0909+0002 An international team of astronomers has investigated an extremely luminous infrared galaxy known as WISEJ090924.01+000211.1 (or WISEJ0909+0002 for short) as part of the eROSITA final equatorial depth survey (eFEDS). Results of this study, published April 6 on the arXiv pre-print server, provide important insights into the properties of […]

Novel theory addresses centuries-old physics problem

Novel theory addresses centuries-old physics problem The ‘three-body problem,’ the term coined for predicting the motion of three gravitating bodies in space, is essential for understanding a variety of astrophysical processes as well as a large class of mechanical problems, and has occupied some of the world’s best physicists, astronomers and mathematicians for over three […]

Indian astronomers detect over 200 variable stars

Indian astronomers detect over 200 variable stars Using the ARIES telescope, astronomers from India have inspected a young open cluster known as NGC 281, searching for new variable stars. As a result of this investigation, they detected 228 new variables. The finding is detailed in a paper published April 5 on the arXiv pre-print repository. […]

‘Yellowballs’ offer new insights into star formation

‘Yellowballs’ offer new insights into star formation A serendipitous discovery by citizen scientists has provided a unique new window into the diverse environments that produce stars and star clusters, revealing the presence of “stellar nurseries” before infant stars emerge from their birth clouds, according to Planetary Science Institute Senior Scientist Grace Wolf-Chase. phys.org Go to […]

Black holes like to eat, but have a variety of table manners

Black holes like to eat, but have a variety of table manners All supermassive black holes in the centers of galaxies appear to have periods when they swallow matter from their close surroundings. But that is about as far as the similarities go. That’s the conclusion reached by British and Dutch astronomers from their research […]

Gaia Finds 12 Examples of Einstein Crosses; Galaxies Being Gravitationally Lensed so we see Them Repeated 4 Times

Gaia Finds 12 Examples of Einstein Crosses; Galaxies Being Gravitationally Lensed so we see Them Repeated 4 Times In 1915, Einstein put the finishing touches on his Theory of General Relativity (GR), a revolutionary new hypothesis that described gravity as a geometric property of space and time. This theory remains the accepted description of gravitation […]

Brown Dwarfs can Spin so Fast They Almost Tear Themselves Apart

Brown Dwarfs can Spin so Fast They Almost Tear Themselves Apart We tend to image planets as spheres. Held together by gravity, the material of a planet compresses and shifts until gravity and pressure reach a balance point known as hydrostatic equilibrium. Hydrostatic equilibrium is one of the defining characteristics of a planet. If a […]

What Would Raindrops be Like on Other Worlds?

What Would Raindrops be Like on Other Worlds? Precipitation is much more widespread throughout that solar system than commonly assumed.  Obviously it rains water on Earth.  But it snows carbon dioxide on Mars, rains methane on Titan, sulfuric acid on Venus, and could potentially rain diamonds on Neptune.  The type of material falling out of […]

Jupiter Could Make an Ideal Dark Matter Detector

Jupiter Could Make an Ideal Dark Matter Detector So, you want to find dark matter, but you don’t know where to look? A giant planet might be exactly the kind of particle detector you need! Luckily, our solar system just happens to have a couple of them available, and the biggest and closest is Jupiter. […]

Hubble takes a spiral snapshot

Hubble takes a spiral snapshot The luminous heart of the galaxy M61 dominates this image, framed by its winding spiral arms threaded with dark tendrils of dust. As well as the usual bright bands of stars, the spiral arms of M61 are studded with ruby-red patches of light. Tell-tale signs of recent star formation, these […]