1+ hour, 31+ min ago  (100+ words) Earth Sky The Milky Way is a cloudy stretch of stars and dust that make up our home galaxy. In Northern Hemisphere spring, the starry stretch of our galaxy begins to rise above the horizon in the early morning hours....

3+ day, 1+ hour ago  (351+ words) The first Earth Day " April 22, 1970 " is sometimes said to have marked the beginning of the modern environmental movement. The April 22 date was selected in part because it fell between colleges" spring break and final exams. And it was also when…...

1+ day, 2+ hour ago  (118+ words) NASA published this original story on April 20, 2026. Edits by Earth Sky. Several massive stars, which are outside this field of view, have shaped this region for at least 300, 000 years. Their powerful winds continue to blow an enormous bubble. And a…...

1+ day, 12+ hour ago  (650+ words) The Royal Astronomical Society published this original story on April 24, 2026. Edits by Earth Sky. Ultra-faint dwarf galaxies " tiny satellite galaxies orbiting the Milky Way " have long been seen as cosmic fossils. Now, a new study published April 24, 2026, in Monthly Notices…...

6+ mon, 2+ week ago  (539+ words) And the results suggest the sulfuric acid is less concentrated and potent than scientists have thought. It could also mean a more habitable environment for possible microbial life. Pioneer Venus 1 orbited Venus from 1978 to 1992. Pioneer Venus 2 consisted of a main…...

2+ day, 29+ min ago  (754+ words) Astronomers consider water to be essential for life as we know it to form on a given planet. But, unfortunately, not all watery worlds stay watery. Venus, according to some studies, once had as much water as Earth does " but…...

2+ day, 59+ min ago  (1004+ words) Waves on Saturn's large moon Titan vs. waves on Earth. A new study from researchers at MIT shows that waves on other worlds " including planets outside our solar system " should vary greatly. Video via MIT. The study looked at Titan,…...

3+ day, 1+ hour ago  (529+ words) An animation of the interaction between the Cygnus X-1 black hole and its large companion star. The force of stellar winds from the star bends the jets from Cygnus X-1. Video via the International Center for Radio Astronomy Research (ICRAR). The black…...

5+ day, 1+ hour ago  (665+ words) Scientists have spotted smaller ants cleaning much larger ones, marking the first known case of interspecies ant grooming. In fact, it's the first known case of this behavior across all insects, said entomologist Mark Moffett of the Smithsonian National Museum…...

6+ day, 1+ hour ago  (736+ words) This story came originally from the University of Pennsylvania. Edits by Earth Sky. Gravity, as Isaac Newton described it, is the familiar force that pulls a falling apple toward Earth. Or, as described by Albert Einstein, gravity is a property…...