The discovery of ancient water in a planet-forming disk reveals that some of the water found in comets—and maybe even Earth—is older than the disk’s star itself, offering breakthrough insights into the history of water in our solar system.
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Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern physics. Because it cannot be fully answered using our current physical worldview, researchers assume the existence of a mysterious “dark energy.” However, its origin remains unclear to this day.
A research team from the Yunnan Observatories of the Chinese Academy of Sciences has conducted a study on the binary fraction of blue horizontal-branch (BHB) stars. Their findings, recently published in Astronomy & Astrophysics, provide the intrinsic binary fraction and reveal its relationship with metallicity, kinematics, and effective temperature.
Frozen in time, ancient microbes or their remains could be found in Martian ice deposits during future missions to the red planet. By recreating Mars-like conditions in the lab, a team of researchers from NASA Goddard Space Flight Center and Penn State demonstrated that fragments of the molecules that make up proteins in E. coli bacteria, if present in Mars’ permafrost and ice caps, could remain intact for over 50 million years, despite harsh and continuous exposure to cosmic radiation.
X-ray beams aren’t used just by doctors to see inside your body and tell whether you have a broken bone. More powerful beams made up of very short flashes of X-rays can help scientists peer into the structure of individual atoms and molecules and differentiate types of elements.
A team of physicists from the Faculty of Physics at the University of Warsaw, the Center for New Technologies at the University of Warsaw and Emory University (Atlanta, U.S.) analyzed how atoms’ mutual interactions change the way they collectively interact with light.
When Darwin Quiroz first started working with optics as an undergraduate, he was developing atomic magnetometers. That experience sparked a growing curiosity about how light interacts with matter, an interest that has now led him to a new technique in optical imaging.
Cartels have issued bounties ranging from $2,000 to dox and surveil ICE and CBP officers to $50,000 for assassinating government officials, DHS Secretary Kristi Noem said
Impulse Space, the California-based venture founded by veteran SpaceX engineer Tom Mueller, today unveiled its proposed architecture for delivering medium-sized payloads to the moon by as early as 2028.
An international team of astronomers has discovered the first tidal disruption event (TDE) producing bright radio emission outside the center of a galaxy. The findings are published in The Astrophysical Journal Letters.
Using ESA’s Gaia satellite and NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers from the Ege University in Turkey and elsewhere have observed a galactic open cluster known as NGC 2506. Results of the observational campaign, published October 7 on the arXiv pre-print server, put more constraints on the properties of this cluster.
A research team led by Rice University physicist Frank Geurts has successfully measured the temperature of quark-gluon plasma (QGP) at various stages of its evolution, providing critical insights into a state of matter believed to have existed just microseconds after the Big Bang, a scientific theory describing the origin and evolution of the universe.
Massive monoliths quarried by man can be found all over the planet. The most straightforward definition of a monolith? A monolith can be a large piece of rock that is intended or was used to build a structure or a monument, alone or together with other stones. Ancient mankind has had the ability to quarry transport and place into position massive blocks of stone (monoliths) that weigh more than 100 tons. A monolith can be a monument in itself (statue, monolithic stone). Monolithic sacred stones are found from prehistoric times (menhirs) and in many civilizations, such as the Mayan civilization (steles representing the sovereigns or even the original “zoomorphs” of Quiriguá) and the Aztec civilization (the Coatlicue monolith, representing the goddess of death, or the decorated monolith of Tizoc that represents fifteen victories of this sovereign). The stone spheres of Costa Rica are more than 500 monoliths that weight up to 16 tons. These spheres are associated with constellations and astronomical events. Researchers place them around 6,000 BC, and others say that they could date back as far as 12,000 BC. The first buildings composed of monoliths are dolmens, which date back from the 5th millennium BC. The largest anthropogenic monoliths
 The largest monolith ever carved by man (if we are to ignore the megaliths of Gornaya Shoria in Russia) is the unfinished obelisk of Aswan, which has a weight of around 1200 tons. This massive obelisk never left the quarry, as the massive rock cracked before being separated from the bedrock.  The largest stone ever carved and moved by man is the massive stone of Baalbek, called Hadjar-el-Qoublé (the stone of the South), with dimensions of 21.50 × 4.80 × 4.20 m, the massive rock is believed to weigh between 900 and 1100 tons, according to fairly constant estimates. It left the quarry but remained planted at an angle, not far from the site of its extraction.  Worthy of mention are also the colossi of Memnon. The two giant stone statues represent the pharaoh Amenhotep III, and located on the west bank of the Nile, opposite the Egyptian city of Luxor, near Medinet Habu and south of the great Tebanas necropolis. The Colossi of Memnon have a weight of 1300 tons each. (The statues itself have 750 tons while the pedestal each weighing 550 tons).
The monoliths of Gornaya Shoria are also considered some of the largest ever carved. However, there is a great debate among experts whether these monoliths are naturally occurring, or were carved by an unknown ancient civilization from Siberia. It is reported that the largest sections or blocks of stone have estimated weights between three and four thousand tons, which would make them larger than the megaliths at Baalbek, in Lebanon.  The Stone statues on Easter Island—the Moai—are also massive monoliths created by ancient man. So far, experts have identified more than 900 Moai Statues sculpted by the ancient Rapa Nui scattered throughout the island. Most of them were carved in tufa from the Rano Raraku volcanic cone, where more than 400 Moai remain in mixed phases of construction. According to historical data, the entire development of the various construction techniques was developed on the island between 700 AD and 1600 AD. Everything indicates that the quarry was suddenly abandoned and half-carved statues were left in the rock. The largest Moai statue is the Te Tokanga—the giant. This Moai is located at the main quarry of Rano Raraku and remains unfinished. With a weight of more than 270 tons, it remains a mystery as to how the ancient builders planned on moving it. Such a feat is even unthinkable for modern technology. Island tradition holds that this Moai was destined for the Ahu Vinapu ceremonial center.  The ‘Menhir de Champ-Dolent’ is the tallest of Brittany’s standing stones. Its height above ground is between 9.3 and 9.5 meters, and is made of pinkish granite. This massive standing stone has an estimated weight of around 100 tons. Featured image credit: Shutterstock. People tend to think of quantum materials—whose properties arise from quantum mechanical effects—as exotic curiosities. But some quantum materials have become a ubiquitous part of our computer hard drives, TV screens, and medical devices. Still, the vast majority of quantum materials never accomplish much outside of the lab.
By analyzing the available data from various space observatories and ground-based telescopes, Indian astronomers have conducted a long-term multiwavelength study of a changing-look active galactic nucleus (AGN) known as NGC 3822. Results of the new study, published October 7 on the arXiv pre-print server, provide more insights into the behavior of this AGN.
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Officially speaking, the biggest stone ever moved by man is the granite pedestal of the Bronze Horseman, which was transported to St. Petersburg in 1770,. It is considered as the largest stone ever moved by man, having an estimated weight of about 1500 tons.