🚀 How Reusable Rockets Land Themselves
Reusable boosters flip, slow down and land themselves. SpaceX boosters have landed more than 650 times.
🔴 How Long Does It Take to Get to Mars?
Most trips to Mars take about 7 months. NASA’s Perseverance rover took 203 days.
👩🚀 Why Do Astronauts Float? (It’s Not Zero Gravity)
Astronauts float because they’re falling around Earth, not because gravity is gone. Gravity at the space station is still about 90%.
🚀 How Do Rockets Reach Orbit? Why Satellites Don’t Fall Down
Satellites don’t fall because they’re moving sideways at about 17,500 mph, fast enough to keep missing Earth.
📥 Clean Up Your Gmail Inbox Fast: Press E to Archive
Turn on Gmail keyboard shortcuts, then press E to archive emails and / to jump to search.
✏️ Edit an Excel Cell Without the Mouse: Press F2
In Excel, press F2 to edit the cell you’re on. While typing a formula, F4 locks a reference with $ signs.
🔇 Mute Yourself in Microsoft Teams with Ctrl + Shift + M
In Microsoft Teams, press Ctrl + Shift + M to mute and unmute. Ctrl + Shift + K raises your hand.
⬆️ Go Up One Folder on a Mac with Command + Up Arrow
In Finder, press Command + Up Arrow to go up one folder. Command + Down opens the selected item.
📂 Open Your Mac’s Applications Folder with Command + Shift + A
In Finder, press Command + Shift + A to open Applications. Command + Option + L opens Downloads.
👁️ Preview Files in File Explorer with Alt + P
In File Explorer, press Alt + P to preview files without opening them. Ctrl + Shift + 2 shows large icons.
