Introduction
The Science of Black Holes
by Jesse Emspak
Section 1: Seeing the Unseen: Finding Black Holes
1.1 Evidence Points to Violent Past for the Milky Way’s Black Hole
by John Matson
1.2 Ripples in Spacetime
by Clara Moskowitz
1.3 Here Come the Waves
by Davide Castelvecchi
1.4 Finally, the Face of a Black Hole
by Seth Fletcher
1.5 The Event Horizon Telescope, the Hawking Effect and the Foundations of Physics
by Steve Giddings
1.6 How to Swallow a Sun
by S. Bradley Cenko & Neil Gehrels
1.7 Meet “Spikey,” a Possible Pair of Merging Supermassive Black Holes
by Nola Taylor Redd
1.8 Astronomers Spy a Black Hole Devouring a Neutron Star
by Charlie Wood
Section 2: Black Hole Origins
2.1 Zeroing In on How Supermassive Black Holes Formed
by Yasemin Saplakoglu
2.2 Did Astronomers Just Discover Black Holes from the Big Bang?
by Nola Taylor Redd
2.3 Black Hole Factories May Hide at Cores of Giant Galaxies
by Charlie Wood
2.4 The First Monster Black Holes
by Priyamvada Natarajan
Section 3: Can Black Holes Rewrite Physics?
3.1 Escape from a Black Hole
by Steven Giddings
3.2 Black Holes, Wormholes and the Secrets of Quantum Spacetime
by Juan Maldacena
3.3 Burning Rings of Fire
by Joseph Polchinski
3.4 Have We Solved the Black Hole Information Paradox?
by Yasunori Nomura
3.5 LIGO’s Latest Black-Hole Merger Confirms Einstein, Challenges Astrophysics
by Lee Billings
Section 4: Event Horizons: What We Don’t Know
4.1 Erupting Black Hole Shows Intriguing “Light Echoes”
by Clara Moskowitz
4.2 Black Hole Pretenders Could Really Be Bizarre Quantum Stars
by Charles Q. Choi
4.3 Black Holes from the Beginning of Time
by Juan García-Bellido & Sébastien Clesse
4.4 Maybe We Could “See” a Singularity After All
by Abraham Loeb
Section 5: Life on the Edge
5.1 Living Near a Supermassive Black Hole
by Abraham Loeb
