Scientists have argued over the question since 1883.
Residents fear that the Trump administration’s plans to build a border wall will threaten the region’s spectacular starry skies.
This 2011 astronaut photo captured one of NASA's iconic space shuttles passing between Earth and the International Space Station for the very last time.
Another week of blistering heat will bring even more health risks in the coming days, as overnight temperatures won't provide much relief.
Kobbie Mainoo has cut a pretty forlorn-looking figure at this World Cup.
Horizons Middle East & Africa is your daily spotlight on one of the world's fastest-growing regions. Live from Dubai, we bring you the latest global markets and analysis, plus news-making interviews, with a special focus on MEA. All that and more, as you head to the office in the Gulf, pause fo...