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A composite image showing a galaxy with red circles marking stars on the left and multicolored expanding rings with Earth on the right, all set against a grid background, illustrating concepts like Hubble tension studied by Wendy Freedman.

Starts With A Bang

Is the Hubble tension real? Exclusive interview with Wendy Freedman

Different methods of measuring the Universe's expansion rate yield high-precision, incompatible answers. But is the problem robustly real?

Circular astronomical image showing constellations and celestial objects labeled against a dark sky, reminiscent of a NASA PUNCH video sun corona visualization, with a timestamp of 2025-06-03 01:52 at the bottom left.

Starts With A Bang

Video: NASA’s PUNCH mission sees the Sun’s corona in action

Launched in March, the PUNCH mission has viewed two incredible coronal mass ejections, tracking them farther from the Sun than ever before.

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