A survey of distant quasars gravitationally lensed by closer galaxies calculated the Hubble value at six different redshift distances.

Source: https://phys.org/news/2023-09-early-dark-energy-hubble-tension.html

Euclid is headed for the Earth-sun Lagrange Point 2 (L2), a gravitationally stable spot about 1.5 million kilometres from Earth.

Source: https://www.canindia.com/esas-mission-to-probe-universes-dark-mysteries-to-fly-on-saturday/

Open clusters (OCs), formed from the same giant molecular cloud, are groups of a few tens to a few hundred loosely gravitationally bound to one another.

Source: https://phys.org/news/2023-12-indian-astronomers-explore-cluster-ngc.html