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In 2015, the Laser Interferometer Gravitational-Wave Observatory, or LIGO

The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory supported by the National Science Foundation and operated by Caltech and MIT. It’s designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. It’s multi-kilometer-scale gravitational wave detectors use laser interferometry to measure the minute ripples in space-time caused by passing gravitational waves. It consists of two widely separated interferometers within the United States—one in Hanford, Washington and the other in Livingston, Louisiana.

“That’s one less cosmic hazard we have to worry about!”

A huge cosmic catastrophe has been averted!A massive rogue dead star was initially predicted to brush through our solar system roughly 29,000 years from now. Fortunately, updated calculations show that our planet will be spared from the damage…


Nazarii Neshcherenskyi/iStock.

A massive rogue dead star was initially predicted to brush through our solar system roughly 29,000 years from now.

A recent study published in The Astrophysical Journal Letters discusses a groundbreaking discovery using the Mid-Infrared Instrument (MIRI) onboard NASA’s James Webb Space Telescope (JWST) to reveal the processes responsible for planetary formation, specifically the transition of water from the colder, outer regions of a protoplanetary disk to the warmer, inner regions. This study was conducted by an international team of researchers and holds the potential to help astronomers better understand the complex processes behind planetary formation, which could also help us better understand how our own solar system formed billions of years ago.

“Webb finally revealed the connection between water vapor in the inner disk and the drift of icy pebbles from the outer disk,” said Dr. Andrea Banzatti, who is an assistant professor of physics at Texas State University and lead author of the study. “This finding opens up exciting prospects for studying rocky planet formation with Webb!”

Using MIRI, which is sensitive to water vapor in protoplanetary disks, the researchers analyzed four protoplanetary disks orbiting Sun-like stars, although much younger, at only 2–3 million years old, and the four disks analyzed consisted of two compact disks and two extended disks. The compact disks were hypothesized to deliver ice-covered pebbles to a distance equivalent to the orbit of Neptune in our solar system, and the extended disks were hypothesized to deliver ice-covered pebbles as far out as six times Neptune’s orbit. The goal of the study was to determine if the compact disks exhibited a greater amount of water in the inner regions of the disk where rocky planets would theoretically form.

We live in an age of exoplanet discovery. One thing we’ve learned is not to be surprised by the kinds of exoplanets we keep discovering. We’ve discovered planets where it might rain glass or even iron, planets that are the rocky core remnants of gas giants stripped of their atmospheres, and drifting rogue planets untethered to any star.

Now, astronomers have uncovered evidence of an in a circumbinary disk around a . The remarkable thing about this discovery is that the disk is in a polar configuration. That means the exoplanet moves around its binary star in a circumpolar orbit, and this is the first one scientists have found.

AC Herculis (AC Her) is a binary star about 4,200 light-years away. The primary star is well-studied, while its partner is invisible. It has a polar circumbinary disk, which is unusual but not unheard of. In a new paper, a team of researchers presents evidence for the polar circumbinary exoplanet.

NASA’s Lucy mission will soon have its first asteroid encounter as the spacecraft travels through deep space en route to Jupiter’s orbit. But before the spacecraft passes 265 miles (425 kilometers) from the surface of the small asteroid Dinkinesh, researchers have used 13-year-old infrared data from NASA’s Wide-field Infrared Survey Explorer (WISE) to support the mission’s flyby. Their new study provides updated estimates of the asteroid’s size and albedo—a measurement of surface reflectivity—that could help scientists better understand the nature of some near-Earth objects.

Located between Mars and Jupiter, the main asteroid belt is home to most asteroids in our solar system, including Dinkinesh, which is following an orbit around the sun that places it near Lucy’s path. The Lucy mission is using the Dinkinesh encounter as an opportunity to test systems and procedures that are designed to keep the asteroid within the science instruments’ fields of view as the spacecraft flies past at 10,000 mph (4.5 kilometers per second). This will help the team prepare for the mission’s primary objective: investigating the Jupiter Trojan asteroids, a population of primitive small bodies orbiting in tandem with Jupiter.

In the new study, published in the Astrophysical Journal Letters, University of Arizona researchers used observations made by the WISE spacecraft, which serendipitously scanned Dinkinesh in 2010 during its prime mission. Managed by NASA’s Jet Propulsion Laboratory in Southern California, WISE launched on Dec. 14, 2009, to create an all-sky infrared map of the universe.

Oh yea? I just learned the steps to copperhead road so… whatever.


Light is something in our world that we are very familiar with, and yet it can still throw some incredible curveballs when you look at it in detail. A newly discovered one comes from a pretty well-established phenomenon: what happens when light passes through an interface? That could be glass, water, or something completely different. The solution for that has long been established, but scientists have now found something weird going on in the middle.

As light goes through an interface, its speed changes. The solution for the behavior of light on one side of the interface or the other is the well-established standard wave equation. They can be linked with no problem (a piecewise continuous solution) but this still doesn’t explain what happens at the interface itself. There, the wave should experience an acceleration that is not accounted for by the current solution.

Now, an equation has been put forward in the case of a universe with one space dimension and one time dimension.