STEM Challenges

The cosmic web did not appear by chance — it grew over 13 billion years from quantum seeds planted during the Big Bang. Discover how the faintest ripp...

Zoom out far enough and the universe reveals a stunning structure — a cosmic web of filaments, sheets, and vast empty voids. From our home supercluste...

Galaxies are social creatures — they gather in groups and clusters held together by gravity. Discover the Local Group (our own galactic neighborhood),...

Not all active galaxies are as dramatic as quasars. From the common, nearby Seyfert galaxies with their unusually bright nuclei, to the extreme blazar...

Some galaxies blast out streams of plasma at nearly the speed of light, inflating enormous bubbles millions of light-years across. Explore the dramati...

Quasars are the most luminous sustained objects in the universe — so bright they outshine entire galaxies, yet powered by something far smaller than a...