More from David Shiga
Explore the latest news, articles and features
Life
Why the universe may be teeming with aliens
Features
A well full of stars
Features
Space
What has the Phoenix mission taught us about Mars?
News
Health
When the world catches flu, Google sneezes
News
Space
Problems mount for NASA’s Ares rocket
News
Physics
Pulsars put new spin on evidence for dark matter
News
Space
Hidden black holes may roam Milky Way
News
Life
What direction now for US space exploration?
News
Space
Neil Armstrong makes rare speech as NASA turns 50
News
Space
Space ‘taxis’ could cut the cost of spaceflight
News
Life
How much faster could Usain Bolt have gone?
News
Space
How big can a black hole grow?
News