资讯

The Draw tab is not on Excel's ribbon by default. Learn how to enable, add and use the Draw tab and the various drawing tools in Excel.
Reducing what you carry with you and organizing the way you pack is the easiest way to lower travel-related stress.
Use Microsoft Excel to calculate EBITDA (earnings before interest, tax, depreciation, and amortization) profit margin.
How to use packing cubes Still unsure of how to use packing cubes to make the most of your limited luggage space? We’ve got you covered. It’s really as easy as 1, 2, 3, 4!
The Space Force plans to launch satellites that can track vehicles and ships in 2028 and eventually use that work to figure out how to track airborne targets from orbit.
Chinese researchers have created a small launcher that can capture space debris, which could also be used for military purposes, raising worries about the increasing use of military force in space.
To back up your Gmail messages, go to Google Takeout. Using my test Gmail account that held about 75,000 messages, I got a download from Google Takeout in about 2 hours.
The X-37B is an experimental test program designed to demonstrate technologies for a reliable, reusable, unmanned space platform.
Delta Air Lines is using AI technology to determine a small percentage of ticket prices. Find out what this means for consumers.
Startup Orbital Operations has raised a seed round of funding to work on a high-performance orbital transfer vehicle that uses liquid hydrogen fuel.
The U.S. Space Force emerged as one of the near-term winners of Washington’s budget battles. A proposed $39.9 billion for fiscal year 2026 is a jaw-dropping $11.3 billion jump from last year.
Arizona quarterback Noah Fifita discusses why he is using last season as motivation and more.