For more than a century, astronomers have been fascinated by an intriguing possibility: an undiscovered planet, provisionally known as Planet Nine, could be hiding in the most distant reaches of the Solar System.

Millions of people will see the Moon completely block the Sun on Aug. 12, creating one of 2026's most spectacular astronomical events. Vietnam lies outside the viewing zone, but the eclipse can be watched live online.

Not every full moon looks the same, and the Strawberry Moon is perhaps the clearest example. More than a purely astronomical event, it resembles a breathtaking landscape painting unfolding across the evening sky.

People across Vietnam will have the chance to observe a total lunar eclipse, commonly known as a “Blood Moon,” on the evening of March 3, when the Moon turns a striking copper red as it moves fully into Earth’s shadow.

Supermoons, a total solar eclipse and a dramatic blood moon headline a packed calendar of lunar events in 2026.

The Cold Moon - 2025’s twelfth and final full moon - will rise on the evening of December 4, offering skywatchers a breathtaking astronomical event to close out the year.

The largest and brightest supermoon of 2025 will rise over Vietnam on the night of November 5, appearing up to 14% larger and nearly 30% brighter than a typical full moon.