Blog

Peering into the heart of a distant quasar with the Event Horizon Telescope

A global collaboration of scientists used the Earth-size virtual radio telescope, the Event Horizon Telescope (EHT), to see the innermost parts of the quasar NRAO 530. Quasars are extremely powerful sources of radiation located in the centers of distant galaxies. Their central engines are supermassive black holes, funneling accelerated particles and radiation into bright thin jets. Astronomers are trying to understand the complicated...

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Pondering Benedict XVI, Retired Pontiff

Joseph Ratzinger, Pope Benedict XVI, the retired Bishop of Rome, died today, December 31, at age 95. Many will write learned, well-informed commentaries on his legacy. Rightly so, since that legacy is vast, complex, and very influential. I am a scholar of some Hindu traditions, and a Catholic comparative theologian, and I cannot hope to compete with such ecclesial erudition. My reflection here is simply my own pondering of what I, a Catholic intellectual, have learned or worried about, when thinking of the example of Benedict...

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Blessed are Those Who Doubt: A Christmas Message from St. Matthew

I am thankful that this year at Mass — year A in the three year Sunday cycle —we are following the Gospel according to Matthew in Advent (and we shall hear more from him at Epiphany).

Matthew has helped create Christmas as we know it: the Magi, the star, wicked Herod. He has his own concerns about the continuity of the new and old covenants, the location of Jesus in the lineage of king David — via Joseph, not Mary – and the fulfillment of prophecies...

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God and the Rain

Twice at least I was in Madras (Chennai), south India, in the spring and summer, before the rains came. As was too often the case, the rains were delayed, and water supplies were dwindling. Water was being rationed; people who could afford it purchased smaller and larger quantities from private companies that brought in water from afar. The poor and even many in the middle class lined up with buckets, waiting for a city water truck to come by, to dole out a day’s supply. I lived both times in a Jesuit house, and we had our own water tank on the roof. But we were urged to save water –...

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Resolving the core of the J1924-2914 blazar with the Event Horizon Telescope

Scientists at the Event Horizon Telescope (EHT) have imaged the distant blazar J1924-2914 with unprecedented angular resolution, revealing previously unseen details of the source structure. Blazars are powerful active galactic nuclei, in which supermassive black holes eject relativistic jets directed along our line of sight. A blazar can outshine its entire galaxy and may be observed from a distance of billions of light-years with our radio telescopes.

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Sacred: in the World, in the Heart

More than 50 years ago, very early in my years as a Jesuit, I attended a conference on the international mission of the Society of Jesus. The keynote speaker, Fr Horatio de la Costa, SJ echoed a sentiment attributed to Jerónimo Nadal early in the Society’s history when he told the gathered Jesuits, “We must have hearts as large as the world.” The words ignited a new fire in me. Unexpectedly, they prompted me on a course that just two years later would find me in Kathmandu, Nepal, embarking on my first...

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HDS Interview: as I became president of the Catholic Theological Society of America

I was elected Vice President of the Catholic Theological Society of America in 2019, and then, after being VP and then President-Elect, on June 12 I became President, an office I will hold until June 2023.

Mike Naughton, Senior Media Relations Coordinator at Harvard Divinity School, recently interviewed me about the position, its opportunities and challenges - you can read the interview here:...

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Imaging Reanalyses of EHT Data

The Event Horizon Telescope Collaboration (EHTC) welcomes critical, independent analysis and interpretation of our published results. We publish detailed descriptions of our methods as well as raw data, data products, and analysis scripts to facilitate transparency, rigor, and reproducibility.  

The EHT images of M87 are among the most vetted interferometric images ever published (1,2). Four independent analyses (3,4,5,6) have reconstructed the ring-like structure of M87, employing a diverse set of techniques.  These efforts complement the three...

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