NASA(@NASA):While observing the universe, @NASAHubble caught a galaxy cluster smiling for the camera. 😊 The smile lines are arcs caused by an effect known as gravitational lensing, where massive structures warp spacetime with their powerful gravitational forces and act as a cosmic lens.

NASA

@NASA

Making the seemingly impossible, possible. ✨

Joined December 2007

115 Following 92.3M Followers

NASA@NASA

2026.10.11 16:30

While observing the universe, @NASAHubble caught a galaxy cluster smiling for the camera. 😊 The smile lines are arcs caused by an effect known as gravitational lensing, where massive structures warp spacetime with their powerful gravitational forces and act as a cosmic lens.