On August 2, 1971, during the third EVA (Extravehicular activity) of Apollo 15Notes 1 mission, commander David Scott drove the rover away from Lunar Module, where the television camera could be used to observe the lunar liftoff. Then he left a small aluminum statuette called “Fallen Astronaut” next to the rover, which commemorate those astronauts and cosmonauts who lost their lives in the pursuit of space exploration. Scott also left a plaque bearing the names of 14 known American astronauts and Soviet cosmonauts deceased by that time, along with the statuette. The names of Astronauts and cosmonauts were inscribed in alphabetical order on the plaque.
Continue reading There’s a Memorial to Fallen Astronauts on the Moon
On 15 February 2013, an approximately 20-meter (66 feet) meteoroidNotes 1 entered Earth’s atmosphere over Russia, with a speed of 19.16 ± 0.15 kilometers per second (60,000–69,000 km/h or 40,000–42,900 mph). Its mass is estimated at 7,000 to 10,000 tons, one of the largest meteoroids entered Earth’s atmosphere in the recent history. Then, at 9:20 am local time (03:20 UTC), it exploded some 20 to 30 kilometers above the city of Chelyabinsk and created a gigantic fireball (known as a superbolideNotes 1) brighter than the Sun. An estimated 500 kilotons of energy was released by the explosion. For a comparison, the “Little Boy”, the atomic bomb dropped on the Japanese city of Hiroshima on 6 August 1945 exploded with an energy of approximately 15 kilotons of TNT. So, the Chelyabinsk meteor’s explosion was about 33 times stronger. The shock waves damaged several thousand buildings and injured approximately 1,500 people. No deaths were reported.
Continue reading Why meteoroids explode before they reach Earth?
Two beautiful historical Earthrise photos, taken by Zond 7, the unmanned Soviet moon-flyby spacecraft in 1969, almost a month after the American Moon landing (on July 20, 1969).
Continue reading The Earthrise as seen from the Moon by the Soviet Zond 7 spacecraft
Using a two-seater ultralight aircraft built by himself, Frenchman Christian Moullec flies with migrating birds since 1995. In that year, dubbed the “birdman”, Moullec, saw that lesser white-fronted geese were struggling with their migration from Germany to Sweden. Inspired by the work of the famous Austrian ethologist Konrad LorenzNotes 1, known as “the man who walked with geese”, he decided to help them and built his handmade aircraft. Today, if the weather permits, he flies with birds almost every day and guides them through their journey. This stunning footage published by National Geographic shows Moullec, “the man who flies with migrating birds” guiding the flocks of vulnerable species in his ultralight and taking enthralled passengers with him. According to National Geographic, he takes tourists up to fly with birds from March through October.
Continue reading Watch: The Man Who Flies With Migrating Birds
Twelve years ago, on January 19, 2006, aboard an Atlas V rocket, NASA’s New Horizons probe started its fantastic voyage of exploration with a spectacular launch from the Florida coast toward Pluto and the mysterious realm of the Kuiper Belt beyond.
Continue reading Watch: 12 Years Ago, New Horizons’ fantastic voyage began with a spectacular launch
According to the analyses of NASA and NOAA (National Oceanic and Atmospheric Administration) data, long-term global warming trend continued in 2017. According to NASA, Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880. NOAA scientists concluded that 2017 was the third-warmest year in their record, in a separate, independent analysis. Both agencies’ records remain in strong agreement: our planet is still getting warmer rapidly. The minor difference in rankings is due to the different methods used by the two agencies to analyze global temperatures. Both analyses also show that the five warmest years on record all have taken place since 2010.
Continue reading NASA and NOAA Analyses Suggest That Long-term Global Warming Trend Continued in 2017
On Sunday, January 07, 2018, the residents of Aïn Séfra, a small town in Algeria, experienced a rare phenomenon: snow in Sahara, world’s hottest desert. In the video below, published by the National Geographic, snow dusted the desert’s sandy dunes. With temperatures touching 33.8 degrees Fahrenheit (1 °C), this white blanket stayed briefly through the morning before melting away. However, a few residents found the opportunity to enjoy some winter fun.
Continue reading Snow In Sahara, World’s Hottest Desert
John W. Young, the legendary astronaut has died on January 5, 2018, aged 87. During his 42 years of active NASA service, Young flew in six space missions (with seven launches, counting his lunar liftoff), becoming the first astronaut to achieve that number. He was the only person to have piloted, and been commander of, four different classes of spacecraft: Gemini, the Apollo Command/Service Module, the Apollo Lunar Module, and the Space Shuttle (he was the first astronaut to command the Space Shuttle). He was also the ninth person to walk on the Moon as Commander of the Apollo 16 mission in 1972. Young was actually one of only three people to have flown to the Moon twice, others being Jim Lovell and Eugene Cernan.
Continue reading John W. Young, the astronaut who flew 4 different spacecraft, has died
This is so cool! With this tool, called “Earth Wind Map”, an animated map of global wind, weather, and ocean conditions, you can see current wind speeds all over the Earth, in real time!
Continue reading Earth Wind Map: See Current Wind Speeds all over the Earth
Today, on January 4, 2018, NASA has published an amazing GeocolorNotes 1 image of so-called “Bomb Cyclone”, a very powerful storm off the East coast of the United States. It was taken from National Oceanic and Atmospheric Administration (NOAA) GOES-16 satellite (previously known as GOES-R).Notes 2
Continue reading “Bomb Cyclone” From Space – an Amazing NASA Image