Astronomy

Blue Origin has announced the payload for the first-ever flight of its Blue Ring spacecraft —Scout Space's Owl space domain awareness sensor.

Here’s how the new tetrahedron-based design for the “Trionda” soccer ball may affect next year’s big game

Tens of millions of people are already under heat alerts, and the worst is yet to come

A new image from the Gemini Observatory might show a stellar companion to Betelgeuse, but the discovery is tentative.

The post Betelgeuse's Companion Has Been Found — Or Has It? appeared first on Sky & Telescope.

Record heat in 2024 caused ecosystems on land to emit nearly as much carbon dioxide as they took out of the atmosphere

Record heat in 2024 caused ecosystems on land to emit nearly as much carbon dioxide as they took out of the atmosphere

Senegal has officially joined the Artemis Accords, becoming the 56th nation — and the fourth African country — to commit to a shared vision for peaceful and transparent space exploration.

Week in images: 21-25 July 2025

Discover our week through the lens

NASA currently leads the nation's planetary defense efforts, but some are calling for the Space Force to take control.

We can understand how Earth formed by watching other planets form in distant solar systems. Powerful telescopes like the VLT are making that possible. New observations show a baby planet sculpting patterns in the gas and dust around its star.

It is true that crewed missions to the Moon are expensive, difficult, and dangerous.

Stars uncontaminated by heavier elements are thought to have formed very early in the universe, but a galaxy much later in cosmic history might let us see them for the first time

Stars uncontaminated by heavier elements are thought to have formed very early in the universe, but a galaxy much later in cosmic history might let us see them for the first time

The spacecraft streaks through the darkness of space to reenter Earth's atmosphere.

It's no coincidence that a Klingon with a grudge follows the Enterprise's away mission to Kenfori.

NASA employees and allies protested sweeping science cuts they say are gutting the agency from within. As Congress pushes back on NASA leadership, workers warn the damage is already underway — and the future of U.S. space exploration is at risk.

Think: subzero temperatures, bone-rattling storms and mysteries about the future of our planet under the ice.

It's 1961, and four intrepid cosmic explorers journey to space under the leadership of Reed Richards, where they encounter cosmic rays that change them forever. But what are cosmic rays?

The newly waxing Moon passes Mars low in the west, then Spica and Antares while growing more robust. At dawn, Jupiter heads toward Venus.

The post This Week's Sky at a Glance, July 25 – August 3 appeared first on Sky & Telescope.

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