Image Credit: Vito Technology, Inc.

Uranus is the weirdest place among the eight Solar System planets — with its peculiar chemical composition, extreme temperatures, and the most unusual axial tilt. Here we’ll take a closer look at the planet’s oddities. For those who want to spot Uranus in the sky, we’ll also explain when is the best time to look for the planet. Let’s bring it on, shall we?

Uranus Facts

  • Planet type: ice giant
  • Radius: 25,362 km (15,759 miles)
  • Mass: 8.681 × 10²⁵ kg
  • Aphelion: 3 billion km (1.89 billion miles)
  • Perihelion: 2.5 billion km (1.7 billion miles)
  • Average distance from the Earth: 2.9 billion km…

Image by Vito Technology, Inc.

What does the term “equinox” imply? How often do equinoxes happen? Can you balance an egg on its end at an equinox? In this article, we’ll tell you everything you need to know about equinoxes.

What happens during an equinox?

As you probably know, our planet’s axis of rotation is tilted at 23.5 degrees. This means that the Earth’s Northern and Southern Hemispheres receive unequal amounts of sunlight during most of the year. This axial tilt is the reason we have seasons.

However, two times a year — in March and September — the Earth is positioned so that neither…

Image Credit: Vito Technology, Inc.

The Full Moon will occur on September 20, 2021, two days before the September equinox. In the Northern Hemisphere, it bears the name Harvest Moon; today, we’ll tell you more about this name’s background and reveal when to look for the fully illuminated lunar disk in the sky.

What is a Harvest Moon?

Traditionally, each Full Moon name comes from peculiarities of the lunar month in which it occurs; for example, the Strawberry Moon is associated with the strawberry gathering season. The Harvest Moon is the Full Moon closest to the autumn equinox.

Image Credit: Vito Technology, Inc.

Elon Musk’s company SpaceX is ready to launch the orbital mission with only private citizens on board. Today we’ll tell you about this mission in detail.

What’s Inspiration4?

Inspiration4 is the world’s first all-civilian mission to the Earth’s orbit. The four-person team was sent to orbit by the SpaceX Crew Dragon Resilience capsule from Kennedy Space Center’s Launch Complex 39A on September 16, 2021, at 00:02 GMT (September 15, 8:02 p.m. EDT). The spacecraft will travel across a low Earth orbit for three days.

The mission is sponsored by Jared Isaacman, an American billionaire and pilot. He purchased all four seats from…

( How big is Neptune? What is Neptune made of? Why is Neptune blue? Read our article and learn curious facts about the outermost planet in the Solar System. )

Neptune is known as the eighth and farthest planet from the Sun, which can’t be seen with the naked eye from the Earth. This distant blue planet has faint rings, numerous moons, and no solid surface. In this article, we’ll tell you more interesting details and curious facts about Neptune. Let’s get started!

Neptune facts

  • Planet type: ice giant
  • Radius: 24,622 km (15,299.4 miles)
  • Mass: 1.02413×10²⁶ kg
  • Aphelion: 4.536 billion km (2.819 billion miles)
  • Perihelion: 4.459 billion km (2.771 billion miles)
  • Average distance from the Earth: 4.5 billion km (2.8 billion miles)
  • Surface temperature: −218 °C to −200 °C (−360 °F to…

What is twilight? Did you know that twilight is divided into three periods: civil twilight, nautical twilight, and astronomical twilight? When is the golden hour time? Our infographic will answer all of these questions and help you understand the above-mentioned terms. This information will be especially useful for photographers who are looking for perfect light conditions for their pictures.

Image Credit: Vito Technology, Inc.

Four planetary conjunctions with the Moon will occur this September! In this article, we’ll tell you how and when to observe these remarkable events.

What does a conjunction with the Moon mean?

In astronomy, a conjunction is an apparent event that occurs when two or more space objects are visible very close to each other. In general, conjunctions take place between the Moon and planets (Venus, Mercury, Mars, Jupiter, or Saturn).

Obviously, planets don’t get closer to the Moon in space — it would indeed cause a significant impact on the Solar System. …

( Learn curious facts about the Alpha Aurigids, the September Epsilon Perseids, and the Daytime Sextantids, and find out the best time to watch meteor showers! )

Three meteor showers — the Alpha Aurigids, the September Epsilon Perseids, and the Daytime Sextantids — will produce the greatest number of meteors in September. Wonder how to catch “shooting stars” tonight? Read our article to find out everything about September meteor showers!

Get more tips for watching meteors to maximize your chances of catching the spectacular stellar show in the sky, and then take our quiz about meteor showers to see how well you’ve prepared for meteor hunting!

September 1: The Alpha Aurigids

The peak of the Alpha Aurigid meteor shower will mark the beginning of the month: on September 1, this stream will…

Image Credit: NASA

Although we often use the terms “twilight”, “dusk,” and “dawn” interchangeably, each of the terms has an exact astronomical definition. Moreover, there are three different types of twilight, dusk, and dawn. Let’s deal with these terms once and for all — light pollution explanation included!

Twilight definition

Twilight is a time of the day when the Sun is below the horizon and not visible directly but partially illuminates the sky. We can see twilight because the Earth has an atmosphere, where the light partially scatters and illuminates our planet even when the Sun is gone.

Types of twilight

There are three types of twilight —…

Image Credit: Vito Technology, Inc.

For 76 years since its discovery, Pluto was considered the ninth planet of the Solar System until, in 2006, it was demoted to dwarf planet status. What were the reasons for scientists to do so? What features make Pluto unique? In this article, we’ll talk in detail about this intriguing celestial body.

Pluto facts

  • Type: dwarf planet
  • Radius: 1,188 km (0,738 miles)
  • Mass: 1.30900 × 10²² kg
  • Aphelion: 7.37 billion km (4.58 billion miles)
  • Perihelion: 4.44 billion km (2.75 billion miles)
  • Average distance from the Earth: 5.9 billion km (3.7 billion miles)
  • Surface temperature: −226 °C to −240 °C (−375 °F to…

Star Walk

Point your device at the sky and see what stars, constellations, and satellites you are looking at 🌌✨

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store