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Mark Hammergren

Dec 20, 2021 | Blair Paddock
The James Webb Space Telescope. (Credit: NASA Goddard Space Flight Center)

NASA prepares to launch the most powerful space telescope ever. Local astronomers share some up-close details. 

Oct 12, 2021 | Paul Caine
Illustration of the DART spacecraft with the Roll Out Solar Arrays (ROSA) extended. Each of the two ROSA arrays in 8.6 meters by 2.3 meters. (Credit: NASA)

A NASA mission to deflect an asteroid – it’s been the premise for more than one Hollywood movie – but next month NASA launches its DART mission that aims to do it for real.

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Jul 12, 2021 | Paul Caine
On Sunday, July 11, 2021, Richard Branson became the first person to fly into space on a self-funded ship. (WTTW News via CNN)

Virgin Galactic founder Richard Branson on Sunday became the first billionaire to ride his own rocket ship to space. But beyond being the ultimate joyride for billionaires, will commercial space travel take off as an industry accessible to the rest of us?

Plus: “Chicago Tonight” gets into the UFO report and its implications

Jun 9, 2021 | Associated Press
The image from video provided by the Department of Defense labelled Gimbal, from 2015, an unexplained object is seen at center as it is tracked as it soars high along the clouds, traveling against the wind. (Department of Defense via AP)

The U.S. government has been taking a hard look at unidentified flying objects. A report summarizing what the U.S. knows about “unidentified aerial phenomena” — better known as UFOs — is expected to be made public this month.

May 12, 2021 | Paul Caine
NASA’s Perseverance Mars rover used its dual-camera Mastcam-Z imager to capture this image of “Santa Cruz,” a hill about 1.5 miles away from the rover, on April 29, 2021, the 68th Martian day, or sol, of the mission. The entire scene is inside of Mars’ Jezero Crater; the crater’s rim can be seen on the horizon line beyond the hill. (Credit: NASA / JPL-Caltech / ASU / MSSS)

NASA’S Ingenuity helicopter takes flight on Mars. We get an update on the space agency’s most ambitious mission to date on the Red Planet from local astronomer and space enthusiast Mark Hammergren. 

Feb 17, 2021 | Paul Caine
This Sept. 21, 2020 image shows the remains of an ancient delta in Mars’ Jezero Crater, which NASA’s Perseverance Mars rover will explore for signs of fossilized microbial life. The image was taken by the high resolution stereo camera aboard the ESA (European Space Agency) Mars Express orbiter. (ESA/DLR/FU-Berlin)

NASA prepares to land a rover on Mars designed specifically to detect signs of ancient life. Local astronomer and space exploration enthusiast Mark Hammergren tells us more about the mission.

Dec 30, 2019 | Paul Caine
Using the Event Horizon Telescope, scientists obtained an image of the black hole at the center of galaxy M87, outlined by emission from hot gas swirling around it under the influence of strong gravity near its event horizon. (Credits: Event Horizon Telescope collaboration et al.)

From the first-ever image of a black hole to growing concern over climate change, we review some of the year’s top science stories with three of our regular science contributors.

Sep 10, 2019 | Nick Blumberg
A unique view of Earth from the vantage point of NASA’s Lunar Reconnaissance Orbiter (LRO) in orbit around the moon. (Credit: NASA / Goddard / Arizona State University)

Adler Planetarium astronomer Mark Hammergren explains how a space-based sentry can help detect asteroids that will pass near Earth.

Nov 26, 2018 | Eddie Arruza
This artist’s concept depicts NASA’s InSight lander after it has deployed its instruments on the Martian surface. (Credit: NASA/JPL-Caltech)

It took six months, a voyage of 300 million miles and a final “seven minutes of terror,” but NASA’s InSight spacecraft on Monday touched down on Mars in a landing the craft’s chief engineer called “flawless.”

Aug 14, 2018 | Evan Garcia
Vice President Mike Pence: “The space environment is fundamentally changed in the last generation.”

The president proposes a new branch of the military for space defense. Local experts weigh in on Space Force.

Jul 26, 2018 | Evan Garcia
Mars is bright in the summer sky this week. (Credit: NASA / JPL / USGS)

For the next several days, the celestial event calendar includes some stellar highlights for observers in Chicago and around the globe.

Jun 20, 2018 | Paul Caine
NASA’s Curiosity rover has discovered ancient organic molecules on Mars, embedded within sedimentary rocks that are billions of years old. (Credit: NASA / GSFC)

A tantalizing discovery suggests that life could once have existed on Mars – and may still exist today. We get the latest on the red planet with Adler Planetarium astronomer Mark Hammergren.

Jan 17, 2018 | Paul Caine
An image taken from a video shows a meteor flash on Jan. 16, 2018. (T. Masterson / International Meteor Organization)

A fireball streaked across the Midwestern sky Tuesday night, creating a sonic boom. An Adler Planetarium astronomer tells us more about this rare celestial fireworks display.

Dec 19, 2017 | Evan Garcia

It might sound like an episode of “The X-Files,” but a story reported Saturday by the New York Times sheds light on an official Pentagon program that researched and investigated unidentified flying objects.

Oct 26, 2017 | Alex Ruppenthal
An artist’s impression of what the surface of the planet Proxima b might look like. (M. Kornmesser / European Southern Observatory)

Viewers on four continents will watch a virtual presentation hosted by Adler Planetarium in early November to learn about the possibility of life on other planets.

Sep 14, 2017 | Paul Caine
NASA’s Cassini spacecraft is shown during its Sept. 15, 2017, plunge into Saturn’s atmosphere in this artist’s depiction. ( Credit: NASA / JPL-Caltech)

The Cassini mission has completely transformed our understanding of Saturn and identified two moons that could potentially harbor life. On Friday morning, the journey will come to a fiery end.