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M100: A Grand Design Spiral Galaxy Majestic on a truly cosmic scale, M100 is appropriately known as a grand design spiral galaxy. It is a large galaxy of over 100 billion stars with well-defined spiral arms that is similar to our own Milky Way Galaxy . One of the brightest members of the Virgo Cluster of galaxies, M100 (alias NGC 4321) is 56 million light-years distant toward the constellation of Berenice's Hair ( Coma Berenices ). This Hubble Space Telescope image of M100 was taken recently with the Wide Field Camera 3 and accentuates bright blue star clusters and intricate winding dust lanes which are hallmarks of this class of galaxies. Studies of variable stars in M100 have played an important role in determining the size and age of the Universe . December 25, 2018 via NASA https://go.nasa.gov/2AcD75q ...

Gift Guides Instant delivery, and no wrapping required. From Netflix subscriptions to Nintendo Switch games, you can find digital gifts to fit every loved one's taste. Here are our top picks. via Popular Science "http://bit.ly/2CxThb6"

DIY Help your conifer thrive through the holidays. Nobody wants a drooping, brown-needled Christmas tree in the corner. Keep your living decoration green and happy with these tips. via Popular Science "http://bit.ly/2rRPsaw"

Health All dieting is yo-yo dieting. This is not a pitch against eating. This is a pitch for mindful eating and intelligent exercise—because that’s how you’ll break the annual cycle. via Popular Science "http://bit.ly/2jnwfwC"

DIY Seven steps to protect your new tech and load it with apps you actually want. When you get a new phone or computer, you want to ensure it will have a long and secure life. Here are seven steps you need to take when you first unwrap your device. via Popular Science "http://bit.ly/2EPr0Pu"

Science The famous "Earthrise" turns 50 today. "Earthrise" is arguably the most famous family portrait on the planet—a snapshot of all of us together, captured by Apollo 8 astronauts on Christmas Eve, 1968. via Popular Science "http://bit.ly/2T6Dl51"