For four decades, many SETI experiments have focused on finding sharp spikes in frequency but the new study says signals may not stay narrow as they travel away from their home system.

Performance artist Marina Abramović explains what inspired her to be a major feature of the new Balloon Museum in New York.

Unlike our Moon, they can keep water in oceans liquid for more than 4 billion years.

SETI researchers may have missed alien signals due to a cosmic phenomenon that distorts narrowband radio waves, new research says.