The top 7 black hole discoveries from 2024

Our fascination with black holes is pretty understandable; their one-way boundary, the “event horizon,” traps light, meaning no signal can ever travel from inside a black hole to outside. The edge of the black hole is thus a region of space and time that expressly forbids interlopers. That’s a recipe for mystery. And we all … Read more

NASA’s Parker Solar Probe Makes its Record-Breaking Closest Approach to the Sun

In August 2018, NASA’s Parker Solar Probe (PSP) began its long journey to study the Sun’s outer corona. After several gravity-assist maneuvers with Venus, the probe broke Helios 2‘s distance record and became the closest object to the Sun on October 29th, 2018. Since then, the Parker probe’s highly elliptical orbit has allowed it to … Read more

‘Dune: Prophecy’s’ Faoileann Cunningham on Sister Jen’s harrowing series journey (exclusive)

Amid the sacred stone walls of the Sisterhood’s fortress-like headquarters on the planet Wallach IX, the acolytes of Mother Superior Valya Harkonnen (Emily Watson) and Reverend Mother Tula Harkonnen (Olivia Williams) in “Dune: Prophecy” struggle to make sense of the strange happenings of their order as forces internal and external try to destroy their influential … Read more

Who are the Covenant? The enemy alien alliance explained

Whether you’re following Master Chief and the United Nations Space Command (UNSC)’s fight against the Covenant by watching the Halo TV series or playing the Halo games in order, you might be wondering what’s the deal with the religious alien hegemony that threatens humanity. We’ve collected the main points of their history here to give … Read more

Are there liquid water brines on Mars? New study casts doubt

View larger. | An example of weird, dark streaks called recurring slope lineae on the slopes of Mars’ Horowitz crater. Do liquid water brines form these streaks? A new study suggested brines on Mars are less likely to occur than scientists thought. Image via NASA/ JPL-Caltech/ University of Arizona. 2025 EarthSky lunar calendar is available … Read more

Top events not to miss

View at EarthSky Community Photos. | Richard Witkowski captured the aurora storm on May 10-11, 2024, from Indiana Dunes National Park. It was surely one of the best night sky events of this past year. Thanks, Richard! So how about 2025? We can’t predict the next auroral display, but we can provide a preview of … Read more

15 must-see naked-eye skywatching events in 2025

In 2025, skywatchers can look forward to a series of stunning celestial events, including a bright Mars occulted by the Wolf Moon, Venus at its brightest, a spectacular “devil’s horns” solar eclipse, and plenty of meteor showers peaking under moonless night skies. Although many of these events are visible to the naked eye, a nice … Read more