Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

Speaker one We’ve been using Sir Isaac Newton’s theories for hundreds of years and still use his equations today. Now, how can we test Newton’s second law using equipment found in our laboratory?

Net profit margin shows a company's remaining revenue after expenses as a percentage. To calculate net profit margin, divide net income by revenue and multiply by 100. Comparing net profit margins ...

If you have ever stared at a bond statement and felt the numbers blur, then you are not alone. In simple terms, the coupon rate tells you the interest cash you will receive each year. Once you see the ...

Relativistic electrons in the outer Van Allen belt wreak havoc with satellites in geosynchronous orbit, but how they reach such high energies has been unclear. New data identify gyro-resonant ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Erika Rasure is globally-recognized as a leading consumer economics subject matter expert, researcher, and ...

Before every takeoff, airlines calculate the exact weight of passengers and luggage to ensure proper balance and flight ...

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 ...