The Beta runs on a schedule - not 24/7. The Beta forum has some talk about the Beta events, but I don't see anything updated at the moment. Not sure when the next test will be. Maybe this weekend with any luck.
This week's Beta test will open at NOON on Friday, March 4th! (pacific time)
The Darkspore Beta servers are being upgraded this weekend! Players worldwide should see better ping times and more responsive gameplay. As part of the server upgrades, all Beta accounts will be reset (including Friends lists), and a new patch will be available. The patch includes many bug fixes and, based on Beta player feedback, new PvP tuning.
If you’ve played in the Beta before, you can press Ctrl-X to skip the opening movie and get right to gameplay.
(Note: Like most online game betas, Darkspore Beta accounts will be not be carried over to the final game)
For those of you that don't check the Beta forums:
The Beta servers are a bit wonky at the moment. *More traffic than expected* blah blah blah. Apparently they up and crashed, not sure when they'll be back. I myself got through the tutorial and to the end of 1-1 when I lost connection. Other folks crashed earlier, or couldn't connect at all. Now we wait.