Since 1609.
Who discover X-Ray?
Röntgen (Wilhelm Röntgen)
How many moons does Neptune has?
14
How wasted harm the environment?
Based on your opinion!
The first satellite sent to mars?
Mariner 9 (Mariner 9 was launched successfully on May 30, 1971)
How old is our Universe?
13.8 billion years
Who discover Relativity?
Albert Einstein
How inner planet are different from outer planet?
........
How rainbow is formed?
Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors
How many natural/human-made satellites are there in the space?
Right now, there are nearly 6,000 satellites
What is an Oort Clouds?
Based on your opinion!
Who is Neils Bohr & Rutherford?
They find out what is Atomic Structure.:))
Who is the first astronaut that landed to the moon?
Neil Armstrong.
When we put ice outside in hot weather, it melted, what is that process call?
Melting!
The path that a satellite follows is known as an orbit. While in orbit, the farthest point from the Earth is known as the ___ while the nearest point is known as the ___.
A. perigee, apogee
B. apogee, perigee
C. adigree, pedigree
D.pedigree, adigree
B
What is the meteor that hit the Earth's surface called?
Meteorite.
Who discover Gravity?
Isaac Newton
Largest moon in the Solar System!
Ganymede :)) (Jupiter's moon)
How big is the total "forest"?
4.06 billion hectares
How satellites communication works?
By using radio waves to send signals to the antennas on the Earth
Define light year.
A distance light travel in a year.
Who is Enrico Fermi?
Enrico Fermi is a Italian physicist, who first find out Nuclear Reactor.
What is the first mission that landed to the moon (which Armstrong in) name?
Apollo 11
Who discover the photosynthesis?
A scientist name Jan Ingenhousz
How stay in orbit?
A satellite maintains its orbit by balancing two factors: its velocity (the speed it takes to travel in a straight line) and the gravitational pull that Earth has on it.