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The Celestron SkyMaster Pro 20x80 binoculars offer a massive aperture, interchangeable eyecups and incredible deep-sky views.

An upcoming NASA mission meant to test new solar sail technology will launch no sooner than April 24, 2024.

As hard as it is to study these denizens of the deep, researchers have found some intriguing evidence to support the idea that “sperm whale culture” exists.

Video: 00:02:35

Meet Hera, our very own asteroid detective. Together with two CubeSats – Milani the rock decoder and Juventas the radar visionary – Hera is off on an adventure to explore Didymos, a double asteroid system that is typical of the thousands that pose an impact risk to planet Earth.

In September 2022 NASA’s DART spacecraft tested if it was possible to divert an asteroid by giving it a shove – and found out that it was! Important knowledge, should we wish to avoid going the same way as the dinosaurs. Astronomers can observe from afar how the smaller asteroid’s orbit has shifted since DART’s impact, but there is still a missing piece of the puzzle if we want to fully understand how ‘kinetic impacting’ works in practice. Suitable for kids and adults alike, this episode of ‘The Incredible Adventures of Hera’ explains why ESA’s asteroid detective and its CubeSat assistants need to get up close and personal to shine light on this cosmic mystery.

Watch the other episodes of The Incredible Adventures of the Hera Mission

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.

How does a comet tail change?

The summer of 2023 was Earth’s hottest since global records began in 1880, according to scientists at NASA’s Goddard Institute of Space Studies (GISS) in New York.

El verano boreal de 2023 fue el más caluroso para la Tierra desde que se establecieron registros mundiales de temperaturas en 1880, según un análisis realizado por científicos del Instituto Goddard de Estudios Espaciales (GISS, por sus siglas en inglés) de la NASA en Nueva York.