Gisat-1A is the programme’s second attempt, and its success finally gives India the capability that Gisat-1 was meant to establish. BENGALURU: When Isro’s GSLV-F17 lifted off from Sriharikota early Friday and successfully placed Gisat-1A or EOS-05 into its intended orbit, the mission did more than add another Earth observation satellite to India’s growing fleet.It ended…
Centuries after people forced a Cumbrian river into a straight, artificial channel, nature has reclaimed its original course in the Lake District, bringing endangered wild fish back to historic spawning grounds almost immediately. In the summer of 2016, conservationists restored a 1.1-kilometre stretch of Swindale Beck near Haweswater by putting its natural bends back into…
damselflyRepresenative image from Canva For much of the 20th century, the Santa Cruz River that winds through Tucson, Arizona, existed more as a memory than a living waterway. Groundwater pumping, drought and urban growth drained the riverbed, leaving long stretches of dry sand and scattered pools. Then, in a quiet but transformative experiment, treated wastewater,…
A fungus infecting goldenrod soldier beetles can alter their behaviour before death and cause changes to their bodies afterwards. Researchers investigating Eryniopsis lampyridarum found infected Chauliognathus pensylvanicus beetles clamped their mandibles tightly onto flower heads shortly before dying. Between 15 and 22 hours after death, the fungus caused the beetles to raise their hardened forewings…
Both McDermott Lake and Sandy Beach Lake had previously supported natural walleye recruitment. Scientists removed about 285,000 warm-water fish from a Wisconsin lake over four years in an attempt to help its declining walleye population recover. The large-scale experiment reduced several fish species and was followed by a sharp rise in yellow perch. However, it…
For a developing frog embryo, gravity is more than the force that keeps it on the ground. It can provide a reference for how the egg is oriented as development begins, helping establish the direction in which the embryo will form. Nasa wanted to find out what would happen if that reference disappeared. During a…
PC: Natural History Museum of Utah A fungus can turn an infected ant into what scientists describe as a real-life ‘zombie ’, taking over its behaviour in a way that helps the parasite reproduce. The phenomenon is linked to Ophiocordyceps unilateralis, a fungus that infects several ant species. After infection, the ant may continue behaving…
Glen Canyon Dam (Image Credit: Canva) For eight days in 1996, the Colorado River through the Grand Canyon experienced something unusual: a deliberately created flood. Scientists working with the U.S. Geological Survey (USGS) and other agencies used Glen Canyon Dam to release water at rates reaching 45,000 cubic feet per second, creating a massive controlled…
Quote of the day by Stephen Hawking Few questions have occupied the human mind for quite as long as why the universe exists, and whether human life actually has any real purpose. For centuries, people have approached these questions through religion, philosophy and science, often arriving at genuinely very different conclusions. Stephen Hawking, one of…
In 2011, conservation teams set out on one of the biggest rat eradications ever on a tropical atoll, targeting an estimated 30,000 invasive rodents on Palmyra Atoll in the central Pacific. The goal was not just to remove a pest, but to restore an entire ecosystem that had been suppressed for more than a century….