How small satellites are radically remaking space exploration
Interplanetary small satellite missions spurred interest in the emerging new space industry.
Polish scientists believe they can build a spacecraft with a mass of 50kg or less that can take high-quality images of Mars and its moon, Phobos. It might also be able to study the Martian Atmosphere. Access to low-cost launch was a key enabler of the idea.
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Asteroids are what's left after the formation of our solar system from billions of years ago.
It is believed that the reason why they were formed were because of the birth of Jupiter. Its birth hindered any planetary bodies to form in the space between Mars and Jupiter, which resulted to the small objects that were present to crash onto each other and fragment themselves.
The two theories that back this up are the Nice model and the Grand Tack.
The different types of asteroids are:
Pioneer 10 and Pioneer 11 were launched in 1972 and 1973. They were the first spacecraft to visit Jupiter and Saturn in a one-way voyage.
Voyager 1 and Voyager 2 probes followed after the Pioneers.
The Wilkinson Microwave Anisotropy Probe (WMAP) was launched in 2001 and measured the temperature of the radiation left over from the Big Bang.
The ISS is a multi-nation super satellite, the largest single construct in space, made between 1998 and 2011.
As of 2018, 230 astronauts and 18 countries have visited the Internat...
The International Space Center circles the globe every 90 minutes at a speed of 17,500 mph. It flies at an altitude of 248 miles above Earth.
It holds a crew of three to six people, and for a long time, used the Russian Soyuz spacecraft as a way to transport astronauts. SpaceX has sent 2 more astronauts in May 2020, using their Special Dragon Spacecraft, courtesy Elon Musk.
Astronauts mainly perform experiments and do maintenance at the ISS. They also do some personal care and exercise, reach out to Earth to conduct some media or school events, and occasionally perform spacewalks. They also use a bit of Twitter.
Human health research, especially eye problems are a major activity. Biological activities, animal tests and testing of appliances in space is also done.