Carl Sagan’s famous quote says “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.” In that famous quote, Sagan makes reference to the whole universe started off with hydrogen and helium, all stars produce helium, and then stars over a certain mass threshold produce carbon, nitrogen, oxygen and lots of heavier elements – which are also the source of the life. The star stuff is inside us – every living thing on Earth.
But, even stars are aren’t powerful enough to create heavy elements like silver, gold, and cesium. Since the 1950s, scientists have wondered: where do most of the elements in the periodic table come from?
Continue reading LIGO detects gravitational waves from neutron star merger
James Reynolds, the storm chaser and drone pilot, shot an amazing aerial footage of the eruption of Shinmoedake, a volcano in Kagoshima Prefecture, Kyūshū, Japan. You can also hear the rumbling sound coming from the volcano.
Continue reading Japanese Volcano Eruption – Amazing Drone Footage
Russian TV network Russia Today (RT) has released the first 360-Degree Spacewalk Video ever. The video is recorded by the Russian Cosmonauts Sergey Ryazansky and Fedor Yurchikhin outside the International Space Station (ISS) while doing their 7.5-hour spacewalk on August 16, 2017. The video contains breathtaking images of Earth.
Continue reading Watch the First-Ever 360-Degree Spacewalk Video
While Elon Musk and SpaceX planning to send Humans to Mars as early as 2024, the American global aerospace, defense, security and advanced technologies company Lockheed Martin has also revealed animations of a reusable rocket to colonize the red planet. The American company has teamed up with NASA, to build a space station (Mars base camp) orbiting Mars and a reusable, water-powered lander. The goal is sending humans to Mars only in a decade. The space race 2.0 is on the way!
Continue reading Space Race 2.0? Lockheed Martin and NASA have teamed up to send humans to Mars
The American scientific agency within the United States Department of Commerce, National Oceanic and Atmospheric Administration (NOAA) published an animation on youtube showing the Earthquakes of the First 15 Years of the 21st Century (between January 1, 2001 and December 31, 2015). The animation shows every recorded earthquake in sequence as they occurred at a rate of 30 days per second. It is based on the new SOS dataset of all the earthquakes in that period from the US NWS Pacific Tsunami Warning Center.
Continue reading Animation – Earthquakes Between 2001 and 2015
The billionaire founder of SpaceX, Elon Musk has revealed a new plan to colonize Moon and Mars with giant reusable spaceships. He provided an update on their Mars colonization plan at the International Astronautical Congress (IAC)Notes 1 in Adelaide, Australia this week. Musk plans sending 1 million people to Mars using BFRNotes 2, and “making life multiplanetary”. He has highly ambitious plans like launching and landing at least two uncrewed cargo ships on Mars as early as 2022.
Continue reading “Making Life Multiplanetary”: Musk reveals a new plan to colonize Mars
On September 27, BBC has published the prequel of “Blue Planet II”. Like “The Blue Planet”, which was premiered on 12 September 2001, it is narrated by Sir David Attenborough, the English broadcaster and naturalist. The exclusive track developed by the German composer and record producer Hans Zimmer and the English rock band Radiohead.
Continue reading Blue Planet II – The Prequel by BBC
Birds (Aves) range in size and weight from the 5 cm (2 in) and 1.6-2 grams bee hummingbird to the 2.75 m (9 ft) and 104-156 kg (229-344 lbs) ostrich. Here are the top 15 largest bird species (by body weight).
Birds form one of six basic animal groups, with the others being amphibians, fish, invertebrates, mammals and reptiles. They are endothermic vertebrates, characterized by feathers, toothless beaked jaws, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. They reproduce by laying of hard-shelled eggs (eggs fertilize inside the female). The fossil record indicates that birds are the last surviving group of dinosaurs. So, they are also termed avian dinosaurs.
Continue reading Top 15 Largest Bird Species
Launched on October 15, 1997, NASA’s Cassini spacecraftNotes 1 went into orbit around Saturn on July 1, 2004. Since then, it has taken thousands of photos of Saturn, the second-largest planet in the Solar System, its prominent rings, and moons. And on September 15, 2017, Cassini plunged into Saturn’s atmosphere and disintegrated. Here are the 20 most beautiful photos that the spacecraft has sent back to Earth during its 13-year voyage around the gas giant.
Continue reading 20 Best Photos of Cassini’s voyage around Saturn
External cameras on the International Space Station captured views during an its overhead passes of Hurricane Irma. Most intense Atlantic hurricane observed in over a decade, Hurricane Irma was an extremely powerful tropical cyclone, which became a Category 5 hurricane on September 5. It reached peak intensity with 185 mph (295 km/h) winds on September 6.
Continue reading International Space Sation Pass Over Hurricane Irma