• New photonic chip spawns nested topological frequency comb

    Scientists on the hunt for compact and robust sources of multicolored laser light have generated the first topological frequency comb. Their result, which relies on a small silicon nitride chip patterned with hundreds of microscopic rings, appears in the journal Science.

  • Turning infrared light visible: New device uses 2D material to up-convert infrared light

    The human eye can only see light at certain frequencies (called the visible spectrum), the lowest of which constitutes red light. Infrared light, which we can't see, has an even lower frequency than red light. Researchers at the Indian Institute of Science (IISc) have now fabricated a device to increase or "up-convert" the frequency of short infrared light to the visible range.

  • Star power in Boötes

    The late-spring constellation of Boötes is home to brilliant Arcturus and a collection of some of the most beautiful double stars of the season.

  • Resolving Messier 3’s swarming stars

    Messier 3 in Canes Venatici is right up near the top of the premier league of globular clusters. It has huge appeal for visual observers and imagers alike, making it a great alternative in the late spring sky to the ubiquitous Messier 13.

  • Assyrian military camp found, potentially supporting biblical account of angels killing 185,000 soldiers

    Recent archaeological discoveries may lend credence to a Biblical story recounting a divine intervention that saved Jerusalem from an Assyrian invasion approximately 2,700 years ago. Researchers have identified ancient military camps that correspond with the narrative of King Sennacherib’s siege, potentially verifying parts of the Biblical account found in the Hebrew Bible and the Old The post Assyrian military camp found, potentially supporting biblical account of angels killing 185,000 soldiers appeared first on Archaeology News Online Magazine.

  • China's Chang'e 6 Spacecraft Spotted by NASA's LRO on Lunar Far Side

    Los Angeles CA (SPX) Jun 18, 2024 NASA's Lunar Reconnaissance Orbiter (LRO) captured an image of China's Chang'e 6 sample return spacecraft on the Moon's far side on June 7. Chang'e 6 had landed on June 1, and LRO imaged the lander on the rim of an eroded crater approximately 55 yards (50 meters) in diameter nearly a week later. The LRO Camera team calculated the landing site coordinates to be around 42 degrees south latit

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