astronomy

In this boundless universe, are we humans really the only ones?

When Kepler saw the smaller planets orbiting Jupiter, they reminded him of the bodyguards surrounding a king on a journey, so he named them satellites.

Is there intelligent life on other planets?

I'm pretty much certain that intelligent life exists somewhere in this universe, but the chance of that life coming to Earth is almost zero.

Will the universe continue to expand infinitely?

Why does the moon shine at night?

In recent years, by means of a method called VLBI — which applies the observation of quasars — and GPS, the absolute motion of tectonic plates has begun to be understood as well.

There will be a lunar eclipse tomorrow.

A quasar is a celestial object extremely far away that gives off a blinding brightness.

What Jansky observed was radio waves of 14.6 meters wavelength from the galactic core.

Solar activity is currently low, but large sunspots still appear from time to time.

Let's observe the sunspots on the sun.

My father studies astronomy — that is, the study of stars.

An image taken by JAXA's Earth observation satellite 'Daichi.'