Spacecraft wakes up - level 2
In November 2014, scientists sent a spacecraft probe to land on a comet. The probe successfully landed and worked for 60 hours, but when it ran out of energy, it stopped working. It happened to sit in a shadow and its solar battery could not recharge.
When the comet moved closer to the sun, the shadow moved and the probe’s battery received solar power. Recently, the probe started to send transmissions to scientists again. It even sent a tweet!
Difficult words: probe (an electronic machine that people send to study something far away),recharge (to get energy again), transmission (a message).