protostar

Water’s Epic Journey to Earth Began Before the Sun Formed

The origins of Earth's water is a complicated mystery that scientists have been untangling for decades. Life is impossible without…

1 year ago

Earth’s Water is 4.5 Billion Years Old

The origin of Earth's water has been an enduring mystery. There are different hypotheses and theories explaining how the water…

1 year ago

This is a Classic Example of a Reflection Nebula, Where the Reflected Light From Young Hot Stars Illuminates a Protostellar Cloud of Gas and Dust

The interplay of energy and matter creates beautiful sights. Here on Earth, we enjoy rainbows, auroras, and sunsets and sunrises.…

2 years ago

Newly Forming Stars Don’t Blast Away Material as Previously Believed. So Why Do They Stop Growing?

We thought we understood how stars are formed. It turns out, we don't. Not completely, anyway. A new study, recently…

3 years ago

Astronomers See a Newly Forming Planetary Disk That’s Continuing to Feed On Material from its Nebula

Over the last few years, astronomers have observed distant solar systems in their early stages of growth. ALMA (Atacama Large…

3 years ago

First Detailed Image Of Accretion Disk Around A Young Star

For the first time ever, an international team of astronomers - using the ALMA array - have taken a clear…

7 years ago

ALMA Spots a Nascent Stellar Monster

Even though it comprises over 99% of the mass of the Solar System (with Jupiter taking up most of the…

11 years ago

What is the Life Cycle of Stars?

Like all living beings, stars have a life cycle, which consists of birth, a lifespan characterized by growth and change,…

15 years ago

What Are The Different Types of Stars?

Stars come in many different sizes, colors, and types, and understanding where they fit in the grand scheme is important…

15 years ago