Are dogs a good judge of character? New study says maybe not

Many people think their dogs are good judges of a person’s character, but new research indicates there is no evidence that dogs form opinions of people.

The 1st footsteps on the moon: Celebrate with Moon Day

Today is the 56th anniversary of humanity's historic Apollo moon landing and the 1st human footsteps on the moon. And it's also International Moon Day.

What are hole-punch clouds, aka fallstreak holes?

Have you ever seen a fallstreak hole or hole-punch clouds? They're a type of cloud with a flat layer interrupted by a big hole, often with wisps at the center.

Human dam-building has caused a small (but astonishing) pole shift

Human dam-building - nearly 7,000 dams from 1835 to 2011 - has shifted Earth's poles and caused a drop in global sea levels.

How do fireworks get their beautiful colors?

The red, orange, yellow, green, blue and purple colors exploding in the night sky during a fireworks festival are created by the use of metal salts.

Calculating whether an asteroid might hit Earth

How do scientists calculate the probability that an asteroid might hit Earth? And why does the likelihood often go up before dropping to zero?

A Stone Age ocean voyage re-enacted by daring scientists

Scientists re-enacted a Stone Age voyage from Taiwan to the Ryuku Islands of southern Japan using a canoe made from replica tools of that period.

July birthstone: The rare and precious ruby

The July birthstone, the ruby, is among the most prized of the precious stones. It is one of the hardest gemstones, chemically related to the sapphire.

Blazing daylight fireball reported over U.S. Southeast!

Several reports were posted on social media of a rare daylight fireball that was seen over several southern states in the U.S. on June 26, 2025.

Asteroid Day to be observed worldwide on June 30

Asteroid Day is celebrated each year on June 30. Events are celebrated in Luxembourg (June 28 to 29) and around the world. Find more info here.

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