reason articles

What are the three reasons why living things Cannot survive on the Moon?

The Moon, Earth’s constant celestial companion, appears serenely beautiful from our distant blue vantage point, a famili...

What is the main reason for the low star formation in elliptical galaxies?

The silent grandeur of **elliptical galaxies** often belies a long and dramatic history. Unlike their spiral cousins, wh...

What is the reason that planetary nebulae are visible?

Planetary nebulae owe their ephemeral visibility to a dramatic final act in the lives of certain stars—specifically, med...