A geostationary satellite travels from west to east over the equator. It moves in the same direction and at the same rate Earth is spinning. From Earth, a geostationary satellite looks like it is standing still since it is always above the same location.
What do astronauts do in space for fun?
The astronauts spend their leisure time by reading their favorite books, listening to music, and looking at the Earth. The astronauts can bring some of their own belongings with them. They can spend their leisure time in the same way that they would on Earth by reading their favorite books, listening to music, etc..
What happens to all the rocket boosters after launch?
At an altitude of approximately 45 km (24 nautical miles), the boosters separate from the orbiter/external tank, descend on parachutes, and land in the Atlantic Ocean (+ View Video: SRB Processing). They are recovered by ships, returned to land, and refurbished for reuse.
What happens to rocket fuel tanks?
During launch, tank and boosters are jettisoned and fall back to Earth after a shuttle’s initial push to the sky. Unlike the boosters, however, the external tank is not collected and reused. Instead, the tanks are discarded to burn up in Earth’s atmosphere.
What is the average speed of a real rocket?
If a rocket is launched from the surface of the Earth, it needs to reach a speed of at least 7.9 kilometers per second (4.9 miles per second) in order to reach space. This speed of 7.9 kilometers per second is known as the orbital velocity, it corresponds to more than 20 times the speed of sound.
What is the fuel in a solid rocket booster?
The solid fuel is actually powdered aluminum — a form similar to the foil wraps in your kitchen — mixed with oxygen provided by a chemical called ammonium perchlorate.
Where is the most anaerobic zone in the ocean?
The Arabian Sea has the largest known dead zone in the world, an area larger than Florida where all oxygen has been removed. Human pollution introduces new chemical makeups to ocean regions where marine life can’t survive but large blooms of algae and anaerobic bacteria can.
Who can own the moon?
The Outer Space Treaty means therefore that – no matter whose national flags are planted on the lunar surface – no nation can ‘own’ the Moon. As of 2019, 109 nations are bound by the Treaty, and another 23 have signed the agreement but have yet to be officially recognised.
Who funds the iss?
The ISS includes contributions from 15 nations. NASA (United States), Roscosmos (Russia) and the European Space Agency are the major partners of the space station who contribute most of the funding; the other partners are the Japanese Aerospace Exploration Agency and the Canadian Space Agency.
Who invented solid rocket fuel?
Solid rocket propellant was first developed during the 13th century under the Chinese Song dynasty. The Song Chinese first used gunpowder in 1232 during the military siege of Kaifeng.
Who set first foot on the moon?
On July 20, 1969, Neil Armstrong became the first human to step on the moon. He and Aldrin walked around for three hours. They did experiments.
Why did nasa build the hydrogen tank twice as large as the oxygen tank?
The hydrogen tank is 2.5 times larger than the oxygen tank but weighs only one-third as much when filled to capacity. The reason for the difference in weight is that liquid oxygen is 16 times heavier than liquid hydrogen.
Why did the us ban china from iss?
China wanted to be part of ISS and was willing to pay and work for it. The US Congress passed a law forbidding China’s participation. Thanks to this US Congressman Frank Wolf (politician) , who called China “an evil empire” and made it a career to prevent US and China working together on any subject, including space.
Will iss be abandoned?
In September 2018, the Leading Human Spaceflight Act was introduced with the intent to extend operations of the ISS to 2030, and was confirmed in December 2018. In January 2022, NASA announced a planned date of January 2031 to de-orbit the ISS and direct any remnants into a remote area of the South Pacific Ocean.
How did sea dragon evolve?
Seadragons belong to the family Syngnathidae along with seahorses and pipefishes. Their name refers to the dragon-like shape of their bodies and the spectacular colouring of their special leaf-like skin appendages. They are considered experts in camouflage because of their ability to mimic the appearance of seaweed. Like the other members of the Syngnathidae family, seadragons exhibit special adaptations and behaviours: They have a tube-shaped, toothless mouths, they lack the ventral and pelvic fins and scales typical for fish, but they instead have a bony shell covering their entire bodies.
Are brine shrimp sea monkeys?
Sea-Monkeys are brine shrimp, but not brine shrimp like you’ll find anywhere in nature. They’re a hybrid breed called Artemia NYOS invented in 1957 by Harold von Braunhut.
Can leafy seadragons change colour?
The leafy seadragon can also change color depending on how deep down it goes; it’s even been known to stay still for nearly three days at a time, just drifting along with the current.
Do sea monkeys fight?
If two connected Sea-Monkeys both have whiskers under their chins, they’re males and they’re fighting. Male Sea-Monkeys fight over females. They may appear to be stuck together during the fight, and sometimes more than two are engaged.
Do brine shrimp lay eggs?
In favourable conditions, the female brine shrimp can produce eggs that almost immediately hatch.
Do you need to oxygenate sea-monkeys?
Be sure to aerate the tank daily during the first seven days. This is very important as it is critical that your new baby Sea-Monkeys® get oxygen until they are big enough to swim to the top of the tank. If you have a Million-Bubble Air Pump this is the safest way. Just give 10 to 15 pumps each day.
How do brine shrimp reproduce?
A mature female shrimp can develop up to 150 eggs in her brood sack every 3–4 days. The males seem to have larger “arms” up by their heads. These are “claspers” that the male uses to hold onto the female while mating. Under ideal conditions, brine shrimp will mature and begin to reproduce within 2–3 weeks.
How do you revive sea-monkeys?
Sea-Monkeys have the Jesus-like ability to “resurrect”. All that is required a great deal of patience. The secret is to let the water completely evaporate – a process that takes several weeks, making it even more excruciating than the waiting period prior to hatching.
How often do you oxygenate aqua dragons?
Oxygenate the water at least every day with the bubble pump or pipette. You may be able to see your Aqua Dragons using a magnifying glass in as little as 24 hours, and you should be able to see some with the naked eye within 3-4 days.
How old is the leafy sea dragon?
Leafy seadragons’ longevity in their natural environment is unknown, but it is estimated that they may live seven to ten years.
What is the sea dragon related to?
The common seadragon or weedy seadragon (Phyllopteryx taeniolatus) is a marine fish related to the seahorses. Adult common seadragons are a reddish colour, with yellow and purple markings; they have small leaf-like appendages that resemble kelp fronds providing camouflage and a number of short spines for protection.