Russia’s Progress 70 resupply spacecraft set a milestone for International Space Station operations when it arrived in a record time: just three hours and 40 minutes, or only two Earth orbits (of the ISS). The uncrewed spacecraft delivered the cargo which includes 530 kg of propellant, 52 kg of oxygen gas, 420 kg of water and 1,565 kg of “dry” cargo such as food and other equipment to the space station.
Continue reading Russian spacecraft arrived to the ISS in just 3 hours and 40 minutes
To able to reach the space, we need rockets. Rocket engines work by action and reaction (“To every action, there is always opposed an equal reaction”Notes 1) and push rockets forward simply by expelling their exhaust in the opposite direction at high speed and can therefore work in the vacuum of space. Space rockets are usually enormous in size, because the bigger the rocket is, the more thrust can produce its engine and can carry more weight into the orbit. Here are the 10 tallest rockets ever launched in the history of space exploration.
Continue reading Watch: Top 10 Tallest Rockets Ever Launched
Spacewalking or Extravehicular activity (EVA) is any activity done by an astronaut or cosmonaut outside a spacecraft beyond the Earth’s appreciable atmosphere (a moonwalk is also an EVA). The first skywalker was the Soviet cosmonaut Alexey Arkhipovich Leonov. He became the first human to conduct an extra-vehicular activity (EVA) on March 18, 1965; exiting the capsule during the Voskhod 2 mission for a 12-minute spacewalk. Since this very short EVA, a lot of astronauts/cosmonauts spent many hours outside their spacecraft, mostly for maintenance missions. Here are the top 20 longest spacewalks in history.
Continue reading Top 20 Longest Spacewalks in History
During the Russian cosmonauts Anton Shkaplerov and Expedition 54 Commander Aleksandr Misurkin’s spacewalk on February 2, 2018, NASA astronaut Mark T. Vande Hei published a photo on his twitter account and asked his followers that “Can you find the space-walker’s legs in this photo?” Vande Hei added “Russian spacewalk continues!”
Continue reading Can you find the spacewalker’s legs in this photo?
On August 2, 1971, during the third EVA (Extravehicular activity) of Apollo 15 Notes 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 commemorates 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.
The “fallen astronaut” statuette was created by the Belgian sculptor, painter, and printmaker Paul Van Hoeydonck. It is an 8.5-centimeter (3.3 in) aluminum sculpture, a small stylized figure, meant to depict an astronaut in a spacesuit. Before the mission, commander David Scott met Van Hoeydonck at a dinner party. It was there agreed that Van Hoeydonck would create a small statuette for Scott to place on the Moon. Scott’s purpose was to commemorate those astronauts and cosmonauts who had lost their lives in the furtherance of space exploration. He also designed and separately made a plaque listing fourteen American astronauts and Soviet cosmonauts’ names who lost their lives in the pursuit of space exploration. Van Hoeydonck was given a set of design specifications: the sculpture was to be lightweight but sturdy, capable of withstanding the temperature extremes of the Moon; it could not be identifiably male or female, nor of any identifiable ethnic group. According to Scott, it was agreed Van Hoeydonck’s name would not be made public, to avoid the commercial exploitation of the US government’s space program. Scott kept the agreement secret from NASA management prior to the mission, smuggling the statue aboard his spacecraft.Notes 2
Continue reading There’s a Memorial to Fallen Astronauts on the Moon
The Soyuz (saw-yooz) is a Russian spacecraft. It was designed by USSR’s Korolev Design Bureau (now RKK Energia) in the 1960s, originally built as part of the Soviet manned lunar programs. The spacecraft remains in service today, and as of November 2017, all expeditions to the International Space Station use Soyuz vehicles Notes 1. One Soyuz is always remains attached to the station to allow a quick return in an emergency.
The European Space Agency (ESA) published a series of videos titled “Journey to the International Space Station” explaining how astronauts and cosmonauts go to the ISS and return back to Earth. Here are the amazing three parts videos below.
Continue reading Watch: Journey to the ISS with Soyuz Spacecraft