Because they're so small and light, it costs much less to get a Cube Sat into Earth's orbit than a traditional communications or GPS satellite.

由于立方体卫星如此小而轻，与传统通讯或 GPS 卫星相比，将它送入地球轨道的成本要低得多。

youdao

Because they're so small and light, it costs much less to get a CubeSat into Earth's orbit than a traditional communications or GPS satellite.

由于立方体卫星体积小、重量轻，将它们送入地球轨道的成本比传统通信或GPS卫星要低得多。

youdao

The satellite bounces laser light off the ground, allowing researchers to measure the terrain with extraordinary precision.

这颗卫星利用地面对激光的反射，让研究人员以极高的精度测量地形。

youdao

Peering upwards looking for a flitter of action, the only movement was the pin prick of light from a satellite as it tracked across the starry sky.

BBC: NEWS | UK | Scotland | Highlands and Islands | Seeking 'a wet slap' in the dark

Still, some fishermen enjoy navigating by light rather than satellite.

ECONOMIST: Where majesty and memory watch over the waves

Together, these researchers have found a way to measure the amount of light pollution around using satellite data, thereby creating the world's first atlas of light and darkness.

ECONOMIST: Going, going, nearly gone