A powerful storm system that's seen temperatures plummet in the Rockies is set to bring heavy rain across the Southeast "and a long stretch of wintry weather from the southern Plains to the interior Northeast," the National Weather Service warns.
What's happening: Per the NWS, the effects of the system will be "far-reaching" and impact travel in a vast area that's likely to affect millions of people. Multiple weather-related crashes have already been reported in Denver — including one fatality, per the Denver Post. The city's temperature fell 58 degrees from a "daily-record-tying high of 74 at 2 p.m. Sunday to 16 degrees by 8 p.m. Monday," the Washington Post notes.
Spacewalks are busy for astronauts making repairs outside the International Space Station, but there's usually time for a quick selfie.
What's happening: European Space Agency astronaut Luca Parmitano snapped this photo of himself while making repairs to an instrument designed to detect cosmic rays during a spacewalk on Jan. 25.
A new mission expected to launch to space from Florida on Sunday will give scientists an unprecedented view of the Sun.
Why it matters: Despite decades of studying our closest star, scientists still can't accurately predict our Sun's behavior — when it will eject solar flares, sprout sunspots or how the solar wind works.
Axiom Space wants to build a space station for a new age of exploration, and last week, the Houston-based company started moving ahead with its plans in earnest.
Driving the news: NASA announced that the company has been chosen to add its first module to the International Space Station, opening up the orbiting laboratory to more commercial activities in the future.
Thousands of pieces of space junk are speeding around Earth, but current tracking tools aren't yet able to pinpoint where most of the junk is at any given time, putting other satellites in danger — and fueling a growing industry to track debris and satellites.
Why it matters: Trackers warn collisions can knock out communications, cause millions of dollars in damage, and add to the price of insurance and therefore operation.
Why it matters: The second reported death outside of mainland China came as over 2,400 Hong Kong medical workers went on strike to demand authorities fully close the border with mainland China to stop the spread of the virus, per the South China Morning Post.