Astronomy
Wolf-Rayets are Hot, Massive, Bright Stars
Our sun is 1.3 million times Earth’s volume and 330,000 times Earth’s mass. Our sun is 10,000 degrees F (5,500 degrees C) at its surface. But, for a star, our sun is relatively puny. The real stellar heavyweights are Wolf-Rayet stars, the most massive and brightest stars known.
Hubble can Still Impress and Inspire. Here's Globular Star Cluster NGC 6638
While we’ve all turned our attention to the new James Webb Space Telescope, this image proves Hubble still has it where it counts.
What is an Astronomical Unit?
An astronomical unit - or AU - is a measurement that astronomers use to describe distances in the solar system. Find out how long an AU is here.
Skywatching
How to Beat the Moon’s Glare to See the Perseid Meteors
The annual spectacular, which is the Perseid meteor shower, return to a predicted peak on the night of 12/13 August (Friday night/Saturday morning) between 2 am to 5 am BST (01h–04h UT). Unfortunately, this year’s maximum will be seriously affected by the very unwelcome glow from a near-full Moon (at full phase on 12 August at 01:36 UT, the night before the anticipated Perseid maximum). Nevertheless, it should still be possible to witness some of the shower’s frequently bright meteors, with the occasional very bright shooting star called a fireball, that the Perseids can be relied upon to produce. In addition, they often leave persistent trains or trails across the sky.
Space Exploration
Curiosity Has Been Exploring Mars For 10 Years. Here's What We've Learned.
We're still able to do the same quality and breadth of science that we were ten years ago, and that's pretty extraordinary.
Science Fiction
The Best Sci-Fi Movies and TV Shows to Stream on Netflix in July 2022
Time to catch up on some long overdue sci-fi, so here's our handy guide to what's on Netflix this month.
Astronomical Pictures
The Beautiful Trifid Nebula
The beautiful Trifid Nebula is a cosmic study in contrasts. Also known as M20, it lies about 5,000 light-years away toward the nebula-rich constellation Sagittarius. A star-forming region in the plane of our galaxy, the Trifid does illustrate three different types of astronomical nebulae; red emission nebulae dominated by light from hydrogen atoms, blue reflection nebulae produced by dust reflecting starlight, and dark nebulae where dense dust clouds appear in silhouette.