Garry Hunt
Scientist
Garry E. Hunt is a former NASA Scientist who was a co-host on BBC's The Sky at Night for over 20 years.
Recent articles by Garry Hunt
Why are there two high tides and two low tides every day?
The Moon plays a large part in Earth's tides, but why are there two high tides in a lunar day?
Is it really possible to terraform a planet like Mars?
How realistic is the goal of making an inhospitable planet like Mars more Earth-like?
What causes a ring or halo around the Moon?
Ever noticed a large ring surrounding a bright full Moon? It's all an optical illusion.
If a meteorite is found on your land, do you own it?
What happens if you find a spacerock in your back garden? Who lays claim to meteorites?
Why did it take so long for astronomers to discover Uranus?
Why was Uranus not known to ancient astronomers?
How astronauts survive the extreme conditions in space
Preparing the human body for the cold and radiation of space is no easy task. What did we learn from the Apollo era?
Could a planet orbit a dead star?
Is it possible for a planet to orbit a dead star, and what would that mean for the chances of life?
Do other planets have storms?
Find out about the storm systems on Jupiter, Saturn, Mars and Titan.
Why Venus is called the morning star or the evening star
Why is Venus either visible at sunset or sunrise? It has to do with the planet's orbit, relative to both the Sun and Earth.
Why Venus spins backwards
Why does planet Venus rotate backwards when compared with all the other planets?
Can a moon have a moon?
Some planets have moons. That much we know. But can these natural satellites themselves have moons in orbit?
What is retrograde motion of the planets?
Why do some planets appear to move backwards in the night sky?