Earth.com6 天
Dark matter, if it exists, has a strictly limited lifetime, new study says
Scientists used infrared spectrographs to detect dark matter decay. No signals appeared, but anomalies suggest more ...
National Geographic news1 年
Dark Matter and Dark Energy
The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent). Scientists have ...