In astronomy, what does retrograde mean? And what connection does it have to astrology? We explain how planets move across ...
How hot is Mercury? Mercury's sun-facing side is scorched by temperatures of around 430°C, hot enough to melt lead. Without a substantial atmosphere to distribute heat away from the areas facing the ...
Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. A few evenings ago I found myself in a remote layby in Utah close to ...