It's safe to say that most of us have seen lightning here on Earth plenty of times – some of us have even been struck by it. But the natural phenomenon is one all but a few select individuals will ...

Why does space look dark if the universe is full of stars? This was the question asked by Heinrich Wilhelm Olbers in 1823. From there came the famous "Olbers Paradox." It tells us that, in a static ...

"We have never seen anything quite like it." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. For about 15 years, a powerful radio telescope on ...

As plans for missions to Mars accelerate, so do questions about how the human body might cope. A return trip to the red planet would give more than enough time for someone to become pregnant and even ...