Space And Astronomy Curious

Asteroids have moon!!😮

In our solar system, some planets and dwarfs planets have natural satellite but some asteroid have also natural satellite,
is an asteroid in the asteroid belt which have natural satellite. It was the second asteroid visited by a spacecraft and the first found to have a natural satellite. Name of its Natural satellite is- "Dactyl".
In 1993 the (was an unmanned spacecraft that studies the planet Jupiter and its moon and become the first spacecraft to orbit the Jupiter) was the first spacecraft to discover the first Asteroid moon.
More than 150 asteroids are known to have moons, with more being discovered periodically.

& Space And Astronomy Curious 👍😀

Happy Independence Day!!🇮🇳🇮🇳

Happy Birthday Nikola Tesla 🤩😍❤️.
The man who change the course of Science🤩🤘.

Some interesting results of 😍😇. In the special theory of relativity we workes with an frame of reference. See below⬇️⬇️.....
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The Sun(solar) rotation varied by (or the sun rotates with a different angular velocity at the pole and at the equator)!!😮
Yes, the sun equatorial region rotates faster(taking only about 24 days) than the polar region( which rotate ones in more than 30 days). In solar astronomy, this phenomenon is known as . It is seen when different parts of a rotating object move with different angular velocities at different latitude or depths of the body and/or in time. This indicates that the object is not .
The Sun, unlike the Earth is not a rigid body(or it doesn't rotate likes a rigid body) because it's composed of hot rotating plasma(4th state of matter). Thus the different parts of the sun spin at different velocities. Jupiter, Saturn, and the Sun are the only three celestial bodies in our solar system which show differential rotation.
: Wikipedia
Click on below the link to know about the "cause of differential rotation" ⬇️⬇️or you can go through Wikipedia of differential rotation. If you have still doubt then comments below⬇⬇
https://physics.stackexchange.com/questions/245936/what-causes-the-differential-rotation-of-the-sun

Wouldn't it be wonderful if we could run a spacecraft with the help of exerted by the Sun ☀️??🤔 No, we are not talking about solar cells.
is the method of spacecraft propulsion using radiation pressure exerted by the sunlight on a large mirror. This technology is based on transfer. The photons have no mass (rest mass) & yet when they impinge on some things, they can impart momentum (see below photo⬇️) and provide the tiny push. In space there is nothing to slow down the sail each push changes the sailing speed. This technology has an advantage over other propulsion methods.

Do you know in the microgravity environment of space, astronauts lose 1-2% of their bone mineral density ( ) every month, while on the Earth 🌏 the bone density decreases with age at a very slow rate??
Over time, bone 🍖 changes size, shape, and density as a result of the changing and or load put on the bone, through physical activity and gravity. The lack of gravity causes to decreases in bone density, which weakens the bone and increases the chance of fracture. The drop in bone density, known as disease . Osteoporosis means 'porous bone', is a disease in which bone becomes weak & fragile. Microgravity is extremely for the human body.
What exactly does space travel to your body?? Watch here⬇️⬇️
https://youtu.be/siL97hz8o2w

Hello friends
International Astronomy and Astrophysics Competition is a science competition that gives a good chance to show your Astronomy skills at the International level.
contain some basic question of and every person who know the basic of Physics can apply for this competition.
The to submit your solution is-15.MAY 2020 23:59(UTC).
Every participant will get the Certificate of Participation if your position is 1st, 2nd, and 3rd in this competition you will get the and winning certificate and this competition gives a great experience in Astronomy field.
:
1. Go to https://iaac.space/.
2. Download the problems. Solve this digitally or manually and convert your problem in the file.
3. Now go to 'Submission'.
4. Select " "_ from the ambassador list.
5. Click on 'Submit Solution'.
If you face any problem regarding this competition or any queries contact me via E-mail or whatsapp_NIKHIL GUPTA.
E-mail: [email protected].
WhatsApp No.- (+91)-9729809384.
Best wishes to all of the participates.👍👍
Regards
Official IAAC Ambassador: NIKHIL GUPTA.
Share this information with every interested person (Astronomy lover) and your respective Facebook and WhatsApp group.
Please submit your solution before 15 MAY 23:59(UTC) 2020. Like and share Space And Astronomy Curious page 🙏👍.

-4🌎
Have you heard about the superfluid or superfluidity of helium?? Did you know superfluid helium can up walls?
A superfluid is a state of matter in which matter behaves like a fluid with . When stirred, a superfluid form that continue to rotate indefinitely. A superfluid has zero viscosity, high capillarity, high conductivity, etc. When substances are cooled to very low temperature (near to absolute 0K), their properties change. At very low-temperature liquid helium flows without resistance. The phenomenon become known as superfluidity.
When helium is cooled to a critical temperature of 2.17 K (called its point), a remarkable discontinuity in heat capacity occurs, the liquid density drops, and a fraction of the liquid becomes a zero viscosity "superfluid".
In a superfluid there is no attraction so the superfluid-vessel adhesion and pulls the fluid up the vessel walls in the form of a . It doesn't "defy" , it's just that the Van der Waals force is much greater than the pull of gravity toward the earth.

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Artificial gravity is a force that simulates the effect of gravity on a spaceship. It is not caused by the attraction to the Earth 🌏 but is instead caused by acceleration or centrifugal force. There is a need for artificial gravity on spacecraft to counter the effect of on the astronauts. Constant linear acceleration and centrifugal force are two ways to artificial gravity.
Read here ⏬⏬
https://www.school-for-champions.com/science/gravity_artificial.htm #.XiVBopDhUez

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Have you heard about the first naturally occurring noble gas molecule??
Compounds with noble gases don’t form naturally on Earth. But between the stars, they exist. In the gases of the Crab Nebula, astronomers discovered argonium in what was the first detection of a occurring, noble gas molecule. Located in the constellation ♉ **us.
I added the caption below the image, in which I write the RXN of Argonium.