Welcome to the archive of Questions & Answers previously featured in the StarChild "Question of the Month" section.
How do I become an astronaut? [September 1998]
How do I contact an astronaut? [October 1998]
What are the phases of the Moon? [November 1998]
Is there a Planet X or 10th planet? [December 1998]
Is Pluto or Neptune the farthest from the Sun? [January 1999]
What is an eclipse? [February 1999]
How can I buy a star? [March 1999]
Can you tell me about Space Camp? [April 1999]
What are constellations? [May 1999]
Can you tell me about the other solar systems being discovered? [June 1999]
Will an asteroid hit the Earth? [July 1999]
What causes a "falling star"? [August 1999]
What makes the Sun shine? [September 1999]
Why does the Sun rise in the east and set in the west? [October 1999]
Can you see other galaxies without a telescope? [November 1999]
When were each of the planets first discovered and who did it? [December 1999]
What is the solar cycle? [January 2000]
Does the Sun move around the Milky Way? [February 2000]
What is a light-year and how is it used? [March 2000]
What is meant by "false color"? [April 2000]
What is the biggest star we know? [May 2000]
What is space trash? [June 2000]
Why does the United States spend so much money on satellites? [July 2000]
How do we search for alien life in the universe? [August 2000]
What is meant by the "life zone" or the "green zone"? [September 2000]
Why do stars twinkle? [October 2000]
How can we fly through the tail of a comet? [November 2000]
How old is the universe? [December 2000]
Are all stars in a galaxy? [January 2001]
What is gravity? [February 2001]
Why is there day and night? [March 2001]
What is the orbital period of the Moon? [April 2001]
What is so important about volcanoes on Io? [May 2001]
Not a question...just something to think about [June 2001]
What shape is the universe? [July 2001]
If there is no oxygen in space, how does the Sun "burn"? [August 2001]
Did Galileo invent the telescope? [September 2001]
Where did the Moon come from? [October 2001]
How do we measure the distances to things in space? [November 2001]
Where do comets come from? [December 2001]
Do stars last forever? [January 2002]
Why did Herschel name his planet Uranus? [February 2002]
Why is the crescent Moon sometimes lit on the bottom? [March 2002]
How long does it take to fly to Saturn? [April 2002]
Who discovered the first pulsar? [May 2002]
What does it mean for Mercury to be in retrograde? [June 2002]
Can you tell me about gamma-ray bursts? [July 2002]
How do planets and their moons get their names? [August 2002]
What was the first living thing to go into space and return alive?[September 2002]
Have they found a new planet in our solar system?[October 2002]
How many moons does Jupiter have? [November 2002]
Why is space black? [December 2002]
When is Earth closest to the Sun? [January 2003]
Who figured out the Earth is round? [February 2003]
When did the first stars form in the universe? [March 2003]
What causes fireballs in the sky? [April 2003]
Is my body really made out of star stuff? [May 2003]
If you are on the Moon, does the Earth move in the sky? [June 2003]
How do we know that dark matter exists? [July 2003]
What is happening with Mars this month? [August 2003]
Why are they crashing the Galileo satellite? [September 2003]
What is a brown dwarf? [October 2003]
Can Flat Stanley visit StarChild? [November 2003]
The StarChild site is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), within the Astrophysics Science Division (ASD) at NASA/ GSFC.
StarChild Authors: The StarChild Team
StarChild Graphics & Music: Acknowledgments
StarChild Project Leader: Dr. Laura A.
Whitlock
Curator:
Responsible NASA Official: