Polarized emission has been detected from the largest Lyman-α gas cloud, known as blob 1. This result strongly suggests that such clouds are powered by a central source of ionizing radiation. See ...

Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Vikki Velasquez is a researcher and writer who has ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

So many productivity methods ask you to prioritize your daily tasks by considering how much time or effort they'll require, then tackling the resource-heavy ones first. For some people, that's a solid ...