Times are tough for Mars rover Spirit, permanently embedded in the Red Planet's sands.

AstroInfo website set up an art challenge for all artists and media: make a picture of Spirit at her new home.

Deadline is Feb 13 (no hour nor timezone being specified, caution is advised!), submissions are to be sent by email to the organizer (see website). Hope to see lots of red pixels in the next few days!

Crowdsourcing tee-shirt design website Threadless is hosting a Pixel-art community challenge!
We can't miss this, right! Deadline is September 7th!

Crowdsourcing tee-shirt design site Threadless hosts an exciting new contest: Your challenge is to create a tee design inspired by a video game you make up!

Animation website LoopDeLoop hosts a bi-monthly animation challenge.

You got till Nov 15 to make and submit your anim in one of the allowed formats, including gifs. Animate out loud!

Manupix needs your help with a potential Image Specs issue!

A new pixel-art t-shirt design challenge will open soon at Threadless. Let's do this, PJ!

However before you rush to post your fave pixel pieces, take the time to think hard about what makes a good t-shirt design, as opposed to a good piece of art (pixel or otherwise). Great shirt designs usually have a strong underlying concept, and make use of the shirt background color as a prominent design element. Beware of boxy (rectangular) designs that don't have a good reason for boxyness (such as fake film posters, comics pages etc).

The challenge opens a week from today, and should last for 2 more weeks. You can already ask for feedback on the Threadless forums. Trigger warning: it can be a tough crowd to please out there!

Also be aware that chances of print are very slim, well under 1%. Do this as a chance to compete and improve, not to make easy money. Now pixel away!