A compound lens forged by two galaxies is helping astronomers get a bead on the Hubble Constant and dark energy.

View of the last supermoon of 2024 from Italy Live view of the fourth and last supermoon of 2024 from Italy. A supermoon ...

Live view of the fourth and last supermoon of 2024 from Italy. A supermoon occurs when a full lunar phase syncs up with an ...

You can watch the full moon rise live from Italy, in a free livestream courtesy of astronomer Gianluca Masi of the Virtual ...