Neil deGrasse Tyson explains strategies to prevent a killer asteroid from hitting Earth, covering detection, deflection methods, and how science keeps our planet safe from cosmic threats. Trump ...

THIS book, by two American teachers of philosophy, helps to show how far the best representatives of logic in modern universities have travelled from the Aristotelian tradition which formerly ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Clay Halton was a Business Editor at Investopedia and has been working in the finance publishing field for more than five years. He also writes and edits personal finance content, with a focus on ...

Basic Allowance for Subsistence (BAS) pays for the cost of a military member's meals when dining at their permanent duty station. Although BAS is meant to offset the cost of a member's meals, it doesn ...

Terms apply to American Express benefits and offers. Visit americanexpress.com to learn more. Any time you tap, swipe or dip a credit or debit card at checkout or enter your card number online, you ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Building a budget involves calculating your monthly income and expenses to see how much money you have and where it's going. It can help you pay your bills, save for the future and achieve your goals.