NASA's Perseverance mission has been collecting samples for later retrieval and return to Earth. Now, it's unclear how we'll get those samples home. The post NASA Struggles to Find Way Forward for Mars Sample Return appeared first on Sky & Telescope.

A star in the constellation Norma appears to have been created when two stars merged. The post See What Happens When Stars Collide appeared first on Sky & Telescope.

Jupiter is easy to spot, shining low in the west at nightfall. Near it are Uranus and Comet Pons-Brooks, tougher catches that require binoculars or a wide-field telescope — and some finding skills. The post This Week's Sky at a Glance, April 12 – 21 appeared first on Sky & Telescope.

New research suggests Exoplanet K2-18b may actually be a gas-rich planet with no habitable surface instead of a habitable water world. The post The Planet K2-18b May Not Be Habitable After All appeared first on Sky & Telescope.

On August 12, 2026, a total solar eclipse will be visible across Greenland, Iceland, and Spain, with plenty of inspiring itineraries. The post Plan Now for the 2026 Total Solar Eclipse in Europe appeared first on Sky & Telescope.

With Sky & Telescope’s editors and writers scattered across the eclipse path, we have dozens of stories to share. Here are a few. The post Experiencing Totality: S&T’s Eclipse Stories appeared first on Sky & Telescope.