Dark energy, the mysterious force thought to be driving the ever-faster expansion of the universe, appears to be changing over time, according to new observations released Wednesday. If dark ...

Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe hangs in the balance. The force is enormous—it makes up nearly 70% ...

Even in the most optimistic scenarios, new research has found grass-fed beef is no less carbon intensive than industrial alternatives. For cattle fattened in fields instead of feedlots, the grass ...

Could lumpy metallic rocks in the deepest, darkest reaches of the ocean be making oxygen in the absence of sunlight? Some scientists think so, but others have challenged the claim that so-called ...

As we race towards spring, there’s plenty to be cracking on with in the garden — and knowing when to treat moss in a lawn is crucial at this time of the year. Before you learn how to get rid of moss ...