June birthstone: Pearl, moonstone or alexandrite

For June babies, pick any of these as your June birthstone: a gleaming pearl, a glowing moonstone, or a colorful and exotic alexandrite. All are lovely choices.

Our teeth have strange origins in ancient fish

Our sensitive teeth evolved from sensory tissue on the exoskeleton of ancient, armored fish that lived 465 million years ago.

Starship Flight Test 9 soars to space, then loses control

SpaceX's Starship rocket lifted off for the 9th time. It made it into space, then sprang a leak, spun out of control and tumbled back to Earth's atmosphere.

Livestream: 100 hours to save America’s forecasts

Watch Skeptical Science's The Weather and Climate Livestream. This 100-hour-plus livestream will feature speakers explaining government cuts and more.

Big cities are sinking in the US. Is yours one?

A new study shows that big cities in the U.S. cities are sinking. Groundwater extraction is the number one reason. See where the problem is the worst.

How cuts to science in the US endanger everyone

Cuts to science in the United States will impact our ability to monitor storms, improve the safety of structures and prepare for the next pandemic.

US academic freedom is under threat, says RAS

The UK's Royal Astronomical Society has endorsed a statement with over 150 European science institutions raising concerns about threats to US academic freedom.

Conclave: What’s in that black or white smoke?

At the papal conclave this week, white smoke indicated that a gathering of cardinals in the Roman Catholic Church had elected a new pope.

Our constant human presence in space nears 25 years

In 2025, we celebrate the 25 year anniversary of our constant human presence in space. The first crew arrived at the space station in 2000.

Becoming Earth by Ferris Jabr: Media we love

Becoming Earth by Ferris Jabr shows our planet is teeming with life. Jabr explores life in rock, water and air and shows how life has transformed Earth.

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