A recent satellite survey reveals that several major US cities are sinking. Cities like New York, Chicago, and Houston are experiencing land subsidence. The sinking rate varies between 2 to 10 millimetres annually. Groundwater loss and urbanisation contribute to this issue. This subsidence poses a threat to infrastructure and public safety. Experts recommend increased monitoring and stricter groundwater controls.
The James Webb Space Telescope has made a groundbreaking observation of methane clouds in Titan's northern hemisphere, a region previously known to be cloud-free. This discovery, confirmed by the Keck Observatory, provides valuable insights into Titan's complex climate patterns and methane cycle. Furthermore, the telescope detected methyl radicals, crucial for understanding the moon's atmospheric chemistry and potential for prebiotic conditions.
Scientists have analysed a new Archaeopteryx fossil. This fossil reveals specialised feathers. These feathers aided in flight. Archaeopteryx lived 150 million years ago. It had features of both dinosaurs and birds. The fossil shows it could fly. This discovery helps understand bird evolution. It confirms Archaeopteryx was a legitimate flyer. The fossil was found in Germany.
Even Sheldon Cooper explained this in The Big Bang Theory: “Lois Lane is falling, accelerating at an initial rate of 32 feet per second per second. Superman swoops down to save her by reaching out two arms of steel. Miss Lane, who is now travelling at approximately 120 miles per hour, hits them, and is immediately sliced into three equal pieces.”
Indian Space Research Organisation's Aditya-L1 mission achieved a milestone. It captured a significant solar flare and plasma ejection. The event occurred on December 31, 2023. The mission observed the eruption in near-ultraviolet light. The plasma reached speeds of up to 1,500 kilometers per second. This data is crucial for understanding space weather. It will help predict potential impacts on Earth.
A groundbreaking study reveals that South Africa's rising landmass isn't due to volcanic activity, but rather the Earth's crust reacting to extensive groundwater loss from severe droughts. GPS and satellite data confirm a direct link between drought-induced water loss and ground uplift, offering a new method for monitoring groundwater levels and understanding climate change's impact on Earth's surface.
Axiom Space's Ax-4 mission, piloted by India’s Group Captain Shubhanshu Shukla, is scheduled to launch to the ISS on June 8. The mission, carried by a SpaceX Falcon 9 rocket, will include astronauts from India, Poland, and Hungary, marking a return to human spaceflight for each nation after over four decades.