Answers edited by chandramohanPanakkal
- Back to user's profile
-
Next
-
How do spacecrafts like Voyager 1 and 2 transmit pictures of space back to Earth? How do they receive flight instructions from such a long distance from earth?
-
How do refracting and reflecting telescopes differ?
-
Do astronomers have satellites orbiting other planets in our solar system?
-
Where did the Apollo Missions land on the moon?
-
How long does it take to receive pictures from Mars? When the Phoenix takes pictures on the surface, how long does it take for the pictures to get to us on Earth?
-
How does the sun affect our tides?
-
Do all stars look like our sun?
-
How do scientists test the pH of soil?
-
What are sun and stars made of?
-
Where are the cepheid variables? Can we see any from earth without a telescope?
-
What is the distance from earth to the sun in light years?
-
What are circumpolar stars?
-
How does looking at the sun damage your eye?
-
What are some similarities and differences between Venus and Earth?
-
How does natural gas convert to energy?
-
What is the circumference of the Earth's orbit around the Sun?
-
How does the solar system move?
-
When a comet is at perihelion does it have a brighter tail?
-
Who was the first person to observe the moon through a telescope? What features of the moon did he identify?
-
Is a yellow star, such as the sun, hotter or cooler than an orange star?
-
What is the primary event that lead to the formation of the moon?
-
What causes moon phases? Why is there only one full moon a month?
-
What are the sizes of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto?
-
What causes the earth to tilt back and forth to give us the seasons?
-
What theory describes the formation of the moon?
-
What is beyond our solar system?
-
What is earth's size relative to the galaxy?
-
What are all the planets relative size compared to earth's?
-
How do you calculate the distance between earth and a star?
-
What evidence supports theories that water once flowed on Mars?
-
Which planet in our solar system is most earth like?
-
What is the life cycle of a star?
-
What is the largest man-made satellite orbiting the earth?
-
What does the Hubble Space Telescope do?
-
Suppose we observe a Cepheid variable in a distant galaxy that brightens and dims with a regular period of about 10 days. What can we learn from this observation?
-
What is the size of the Earth's surface?
-
How does looking at the sun damage your eye?
-
Why does the moon exhibit phases?
-
Why are astronomical units used?
-
Why are the images sent from Mars in black and white rather than color?
-
What are all the planets relative size compared to earth's size?
-
What is precession?
-
At what point does the ecliptic cut the celestial equator?
-
How far are we away from the sun during the winter compared to the summer?
-
What planet is closest to the moon in the night sky?
-
Saturn is approximately 1.5 billion kilometers from the sun. What is this distance in AU?
-
How does solar energy convert the heat energy into electrical energy?
-
How do nuclear energy plants work?
-
Question #5243b
-
What is the angle of tilt of the earth with the vertical axis?
-
Why did Galileo's observations of Venus help to disprove the geocentric model of the solar system?
-
How do refracting telescopes work?
-
How does aneroid barometer works?
-
Does the earth spin slower on the northern and southern latitudes ?
-
How bright is a full moon in comparison to the Sun?
-
Which is the nearest star to the Earth: The Sun or Alpha Centauri?
-
Who discovered the size of earth?
-
How is electromagnetic radiation produced on the sun?
-
How is electromagnetic radiation used in communication?
-
Why was Pluto discredited as a planet?
-
Question #ec6d0
-
What are the colors of the stars from hottest to coldest?
-
How many orbits had the sun completed just after the formation of solar system?
-
Why can't we get a picture of the lunar rover sitting on the surface of the moon with earth-based telescopes?
-
When is the tail of a comet the shortest?
-
How was the size of earth first measured?
-
What are the Jovian planets? Where are they found?
-
How long would it take us to travel to Pluto in years?
-
What is the circumference of the orbit of earth around sun? Is it different for each year?
-
What causes a nova explosion?
-
What is the nearest star to earth?
-
Why is the Sun different from other stars in the universe?
-
What is the approximate speed at which the earth orbits the sun?
-
When and where did Giuseppe Piazzi live and work?
-
How many parsec are in one kilometer?
-
How many parsecs are in one mile?
-
What is diurnal rotation of the earth?
-
How does looking at the sun damage your eye?
-
What enables us to see different stars and constellation during different seasons?
-
What are the southern hemisphere constellations?
-
Which way does the moon and earth rotate around the sun?
-
How does an electric motor operate?
-
Why do the planets all orbit in planes very close to the ecliptic?
-
What are the approximate size differences between the Earth and the Moon?
-
What do stars and planets look like from a telescope? Does their appearance vary depending on the type of telescope used?
-
What are the two major forces that act on a star?
-
How can electric energy be produced?
-
Next