Categories

DESI-HVS1 is an old hypervelocity star ejected from the galactic center, observations suggest

Chinese astronomers report the discovery of DESI-HVS1, which may be an old metal-poor hypervelocity star of galactic center origin. The finding, based on the data from the Dark Energy Spectroscopic Instrument (DESI) and ESA’s Gaia satellite, was detailed in a research paper published April 23 on the arXiv pre-print server.

Go to Source

Hunting the elusive Eta Aquariid meteors

Early May is a good time to watch for a powerful yet often elusive meteor shower, the annual Eta Aquariids. They’re a prolific, yet often elusive for northern hemisphere observers. If skies are clear, watch for a strong annual meteor shower that’s attained an almost mythical status: the May Eta Aquariids.

Go to Source

Under crushing hypergravity, fruit flies adapt—and recover

Expose an animal to extreme physical stress, and the expectation is simple: It will break down. But when UC Riverside scientists subjected fruit flies to forces many times stronger than Earth’s gravity—a condition called hypergravity—the insects did something unexpected. They survived. They even mated and reproduced. Their movements and behaviors changed dramatically and then, over time, they recovered.

Go to Source

Physicists achieve first-ever ‘quadsqueezing’ quantum interaction

Researchers at the University of Oxford have demonstrated a new type of quantum interaction using a single trapped ion. By creating and controlling increasingly complex forms of “squeezing” – including a fourth-order effect known as quadsqueezing – the team has, for the first time, made previously unreachable quantum effects experimentally accessible.

Go to Source

The O’Hare Airport UFO Sighting of 2006: Aviation Professionals Witness a Disc Over America’s Busiest Airport

On November 7, 2006, a silent metallic disc hovered over Gate C17 at O’Hare International Airport, witnessed by United Airlines pilots and ground crew. When it shot upward, it punched a clean hole through the clouds. The FAA tried to bury it — until the Chicago Tribune forced it out.

The post The O’Hare Airport UFO Sighting of 2006: Aviation Professionals Witness a Disc Over America’s Busiest Airport appeared first on Infinity Explorers.

Go to Source

A better way to search for extraterrestrial intelligence

When you’re looking for signs of extraterrestrial intelligence, it helps to know what you’re looking for and to go about it in the most efficient way. But work so far has generally not done so, writes Benjamin Zuckerman, an astrophysicist and emeritus professor in the Department of Physics & Astronomy at the University of California at Los Angeles (UCLA).

Go to Source

Physicists have measured ‘negative time’ in the lab

As Homer tells us, Odysseus made an epic journey, against the odds, from Troy to his home in Ithaca. He visited many lands, but mostly dwelt with the nymph Calypso on her island. We can imagine that his wife, Penelope, would have asked him about that particular time. Odysseus might have replied, “It was nothing. In fact, it was less than nothing. Negative five years I dwelt with Calypso. How else could I have arrived home after only ten years? If you don’t believe me, ask her.”

Go to Source

How do close binary stars form?

Our sun is a bit of an outlier in the general stellar population. We typically think of stars as being solitary wanderers throughout the galaxy. But roughly half of sun-like stars are locked in with more than one companion star. If there are two, it’s known as a “binary” system, but in many cases there are even more stars all collectively tied together by gravity.

Go to Source

US–Indian space mission maps extreme subsidence in Mexico City

One of the most powerful radar systems ever launched into space has mapped the ground moving beneath one of the fastest subsiding capitals in the world: Mexico City. The findings show how quickly and reliably the NISAR (NASA-ISRO Synthetic Aperture Radar) satellite can track real-time changes across Earth’s surface from orbit, unhindered by clouds or vegetation that impede optical sensors and higher-frequency radars.

Go to Source

DAMPE satellite reveals cosmic rays share spectral break near 15 teravolts

A century after their discovery, cosmic rays—particles of extreme energy originating from the far reaches of the universe—remain a mystery to scientists. The DAMPE (Dark Matter Particle Explorer) space telescope is tackling this phenomenon, particularly investigating the role that dark matter may play in their formation. This international mission, which includes the University of Geneva (UNIGE), has made a major breakthrough by highlighting a universal feature of these particles. The results are published in the journal Nature.

Go to Source

A longstanding quantum roadblock just fell, opening existing fiber networks to ultra-secure light signals

Researchers at the Niels Bohr Institute have broken a longstanding barrier by managing to send single photons—that can’t be copied or split and thus are secure—in the network of optical fibers we already have. This opens up a broad range of applications relying on secure quantum information. The research is published in the journal Nature Nanotechnology.

Go to Source

BWC: Several NYPD officers injured in home explosion that occurred during domestic call

A man allegedly entered his estranged wife’s home and sparked an explosion that ultimately killed him; several NYPD officers responding to the domestic disturbance were also injured

Go to Source

Measurement of nuclear reactions at record-low energies opens new pathways for astrophysics research

An international research team has achieved an important milestone for astrophysics at GSI/FAIR in Darmstadt: In the CRYRING@ESR storage ring, scientists were able to measure nuclear reactions at extremely low energies for the first time, mirroring the conditions inside stars. This novel experimental approach lays the foundation for decoding the formation of elements in the universe with even greater precision in the future.

Go to Source

Light unlocks full polarization control at ultrafast speeds, reshaping photonics

Scientists at Heriot‑Watt University have demonstrated in a world-first, that light can be used to control every aspect of how electromagnetic waves oscillate, opening new technological frontiers. Researchers working in photonics, the science of light, have discovered a new way to control “polarization,” a key property of light that plays a crucial role in the performance of technologies such as drug development and quantum computers.

Go to Source

Sudden quantum jolts may not break adiabatic behavior after all

In thermodynamics, an “adiabatic process” is a system change that transfers no heat in or out of the system. Any and all energy change in that system are therefore accomplished by doing work on the system, work being action that moves matter over a distance. (An example is a bicycle tire pump or lifting a box from the floor.)

Go to Source