SpaceX’s 1st Starlink launch of 2021 went off without a hitch today

SpaceX launched 60 more of its Starlink satellites early Wednesday. SpaceX ultimately intends to launch tens of thousands of these satellites into low-Earth orbit. The goal is global internet access. Here’s how to watch the launch, and why astronomers are concerned.

What to expect from Mars in 2021

Many saw Mars around last October, when Earth was passing between it and the sun. It was bright in our sky then and in the sky all night. What’s ahead for Mars in 2021?

Lenticular clouds look like UFOs

See photos of rare lenticular clouds, sometimes called UFO clouds, and learn how they form.

Check out these new Sun Science stamps!

The US Postal Service announced that they’ll be releasing a series of stamps highlighting images of the sun captured by NASA’s Solar Dynamics Observatory.

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What is a 1st quarter moon?

The first quarter moon occurs halfway between new moon and full moon. One quarter of the moon is visible from Earth, meaning that you see half the daylit side of the moon.

Striped brown dwarf looks a lot like Jupiter

The surface features of brown dwarfs – objects midway in mass between planets and stars – can’t be seen. But researchers have found a way to reveal Jupiter-like stripes and bands in the atmosphere of the closest brown dwarf, Luhman 16B.

NASA’s moon rocket test Saturday didn’t go as planned

This final test of NASA’s SLS megarocket was needed to launch the first uncrewed mission in the Artemis program – Artemis 1 – by the end of 2021. Now the program’s schedule is uncertain.

6 space missions to look forward to in 2021

Here are some of the space missions to keep an eye out for in 2021.

Theia 456 is a stretched-out stream of sibling stars

A close look at the “stellar stream” known as Theia 456 finds it contains contains 468 stars born at the same time.

What is the fate of the Earth?

Our Earth and sun were born together, and their fates are tied together. As our star becomes a red giant and billows outward, our planet will become a dry, scorched, uninhabitable rock. This will happen even as our Milky Way galaxy collides with the Andromeda galaxy next door.

New study finds polyester fibers throughout the Arctic Ocean

A new study has found that pollution from microplastics is widespread in the Arctic Ocean, and 92% of those particles are minuscule synthetic fibers from our clothes.

2020 tied for warmest year on record

2020 was Earth’s hottest year in the 140-year record, effectively tying 2016, the previous record-holder.

SDO spies its 1st lunar transit of 2021

NASA’s Solar Dynamics Observatory has been continuously observing the sun since its launch in 2010. From its vantage point above Earth, it sees the moon pass in front of the sun 2 to 5 times a year.