Close-up of an exposed processor chip mounted on a green circuit board.

Processor on a circuit board

He Junhui / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. No crop. Images may be cropped in cards to fit the layout.

An open silver laptop sits on a tidy white desk beside a desktop monitor.

Laptop on a neat desk

Norbert Levajsics / Unsplash

Original image page · CC0 1.0 Universal

Wikimedia 1280-pixel thumbnail; no other changes. Images may be cropped in cards to fit the layout.

A smartphone lies beside a keyboard and mouse in warm window light.

Smartphone on a desk

Grabster / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. Center-cropped by the CDN to landscape 1200 × 800. Images may be cropped in cards to fit the layout.

Ethernet cables plug into network equipment illuminated by blue status lights.

Connected network equipment

Albert Stoynov / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. No crop. Images may be cropped in cards to fit the layout.

Open and closed brass padlocks under red and green lighting.

Open and closed padlocks

FlyD / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. No crop. Images may be cropped in cards to fit the layout.

A compact solid-state drive rests among dark storage accessories.

Solid-state storage drive

Voice + Video / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. No crop. Images may be cropped in cards to fit the layout.

A green and red aurora glows along Earth’s curved horizon beneath a starry sky.

Aurora over Earth from the International Space Station

NASA

Original image page · NASA media usage guidelines — editorial and informational reuse

None; downloaded supplied JPEG. Images may be cropped in cards to fit the layout.

Red bubbles and green clouds of gas and dust in a Spitzer infrared image of the Cat’s Paw Nebula.

Cat’s Paw Nebula in infrared

Courtesy NASA/JPL-Caltech

Original image page · JPL Image Use Policy

NASA-provided 1200-pixel rendition; no content changes. Images may be cropped in cards to fit the layout.

Long rows of solar panels cover a desert site beneath a mountain and clear blue sky.

Solar arrays in the Chilean desert

Antonio Garcia / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. No crop. Images may be cropped in cards to fit the layout.

White wind turbines stand across a green field under a blue sky with thin clouds.

Wind turbines across a green field

Arteum.ro / Unsplash

Original image page · Unsplash License

Downloaded Unsplash CDN JPEG rendition at 1200 pixels wide. No crop. Images may be cropped in cards to fit the layout.