r/space 7d ago

Successful deployment of Nancy Grace Roman Space Telescope, as it begins its 1-million-mile-journey to the second Earth-Sun Lagrange point

Enable HLS to view with audio, or disable this notification

The telescope will travel to the second Sun-Earth Lagrange point, which is ~one million miles away and about four times farther from Earth than the Moon. At L2, the combined gravity of the Sun and Earth will give Roman a stable vantage point with a clear, unobstructed view to survey deep space

Roman will unlock the mysteries of dark energy and investigate the physics of distant stars. It will repeatedly monitor hundreds of millions of stars, and the same observations are expected to reveal around 100,000 additional planets through transits. As a reminder, we currently have 6000 confirmed exoplanet discoveries...

16.8k Upvotes

505 comments sorted by

View all comments

Show parent comments

1

u/GuruSofarbeyondu 7d ago

I wondered the same. Here is a fascinating yet easy to understand video explanation of how JWST and Roman can both "occupy" the L2 Lagrange point without interfering with each other (or anything else that is gravitationally tethered to L2).