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Michael J. I. Brown

Associate professor, Monash University
I am an observational astronomer, studying how galaxies evolve over billions of years.

I was born and raised in Melbourne’s southeastern suburbs. My interest in astronomy began as a child, when the Voyager spacecraft visited the outer planets. I undertook my undergraduate and postgraduate studies at the University of Melbourne during the 1990s. For my PhD, I used (now antiquated) photographic plates to identify thousands of galaxies and measure their distribution in space.

In 2000 I joined the staff of the National Optical Astronomy Observatory, and started working on surveys of the distant Universe with large ground-based telescopes and satellites. In 2004 I was awarded Princeton University’s Henry Norris Russell Fellowship, and studied the growth of the most massive galaxies. Using thousands of galaxies in the constellation of Bootes, I found that the most massive galaxies have grown slowly over the past seven billion years, which is almost certainly due to mergers of galaxies.

Since 2007 I have been at Monash University’s School of Physics and Astronomy. I am measuring spectra of galaxies across the electromagnetic spectrum, which is useful for measuring the distances to galaxies, the luminosities of galaxies and how rapidly galaxies form stars. I am also using large astronomical surveys to measure how rapidly galaxies are growing, and how this growth compares to the growth of dark matter halos.

When you look up, how far back in time do you see?

Dec 27, 2018 23:58 pm UTC| Science

Our senses are stuck in the past. Theres a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past. We are seeing into the past too. While sound travels about a...

Looking at the universe through very different 'eyes'

Jan 22, 2018 11:39 am UTC| Insights & Views Science

We are bathed in starlight. During the day we see the Sun, light reflected off the surface of the Earth and blue sunlight scattered by the air. At night we see the stars, as well as sunlight reflected off the Moon and the...

Space Science Series

We can learn a lot from the changing night sky

Jan 07, 2017 01:10 am UTC| Science

You cannot feel or hear the world turning. It does not rumble through space. But you can see it turn with your own eyes every day and night. And, with patience, you can see Earth travel around the Sun. As the globe...

How to quickly spot dodgy science

Jan 04, 2017 05:00 am UTC| Science

I havent got time for science, or at least not all of it. I cannot read 19,000 astrophysics papers every year. No way. And I have little patience for bad science, which gets more media attention than it deserves. Even...

Trump has embraced pseudoscience and its deceptive tactics in a post-truth world

Dec 12, 2016 09:30 am UTC| Science Politics

As a scientist, I expect the Trump presidency to have a curious familiarity. Why? Because the relentless stream of falsehoods and character attacks of Trumps campaign mainstreamed disinformation tactics that biologists,...

Space Science Series

Less secrecy could help astronomy stop the bullying and harassment within its ranks

Nov 23, 2016 03:00 am UTC| Insights & Views Science

Shocking allegations of bullying, harassment and sexual assault at CSIROs Astronomy and Space Sciences (CASS) division were revealed on Sunday by the ABCs Background Briefing program. In CASS alone, the Radio National...

UFOs, climate change and missing airliners: how to separate fact from fiction

Jun 20, 2016 06:47 am UTC| Insights & Views

If youve been on social media then perhaps youve seen the Ancient Aliens meme; a wild-haired alien aficionado Giorgio A. Tsoukalos attributing all manner of things to aliens. Giorgio A. Tsoukalos is a well known...

Economy

India’s Investment Upgrade: A Historic Milestone for the "High-Quality EM" Narrative

SP Global has raised Indias sovereign credit rating to BBB from BBB-, with a Stable outlook, indicating the agencys first upward change for the country in 18 years. This major step increases Indias long-term rating one...

Asian Markets Rally as Oil Prices Tumble and Middle East Peace Hopes Emerge

Asian stock markets posted strong gains on Wednesday, driven by a sharp decline in oil prices and growing optimism over a potential diplomatic resolution in the Middle East. The broad-based rally swept across the region,...

Australia's Inflation Eases in February but Core Pressures Persist

Australias consumer inflation dipped slightly in February, though stubborn underlying price pressures are keeping the Reserve Bank of Australia cautious about cutting interest rates anytime soon. According to the latest...

Oil Prices Plunge Over 6% as Middle East Ceasefire Hopes Ease Supply Fears

Global oil prices dropped sharply on Wednesday during Asian trading hours, with Brent crude falling below the $100 per barrel mark for the first time in recent sessions. The steep selloff came after emerging signs of a...

Currency Markets Show Caution Amid U.S.-Iran Negotiations

Global currency markets displayed muted movement during early Asian trading on Wednesday, as investors remained cautious following conflicting signals surrounding U.S.-Iran peace negotiations. President Donald Trump...

Politics

Trump's Overhaul of American History: Museums, Monuments, and Cultural Institutions

Since returning to the White House, President Donald Trump has launched a sweeping campaign to reshape how American history is presented across cultural institutions, national parks, and public monuments. Framing his...

Pakistan's Diplomatic Rise: Mediating U.S.-Iran Peace Talks

Pakistan is emerging as a key global mediator in efforts to end the ongoing U.S.-Iran conflict, leveraging its unique position as a trusted contact for both Washington and Tehran. This diplomatic role could elevate...

US Accelerates Taiwan Arms Deliveries Amid Rising China Threat

Taiwans Defense Minister Wellington Koo confirmed Wednesday that the United States has expressed a strong sense of urgency in bolstering Taiwans military capabilities, with active efforts underway to resolve long-standing...

Trump Administration Settles Lawsuit Barring Federal Agencies from Pressuring Social Media Censorship

The Trump administration has reached a landmark settlement that prohibits three major federal agencies from coercing social media platforms into removing or suppressing constitutionally protected speech. The agreement,...

Cuba Receives Humanitarian Aid Convoy Amid U.S. Sanctions

Cuba welcomed a long-awaited shipment of international humanitarian aid on Tuesday, as activists from the global Nuestra America Convoy successfully delivered essential supplies to the island nation despite ongoing U.S....

Science

SpaceX Pivots Toward Moon City as Musk Reframes Long-Term Space Vision

SpaceX CEO Elon Musk has revealed a significant shift in the companys near-term space exploration strategy, announcing that SpaceX is now prioritizing the development of a self-growing city on the Moon rather than focusing...

SpaceX Prioritizes Moon Mission Before Mars as Starship Development Accelerates

Elon Musks SpaceX is shifting its near-term space exploration strategy, choosing to prioritize a return to the Moon before pursuing missions to Mars, according to a recent Wall Street Journal report citing sources familiar...

NASA and SpaceX Target Crew-11 Undocking From ISS Amid Medical Concern

NASA has confirmed that the agency, in coordination with SpaceX, is targeting no earlier than 5 p.m. Eastern Time (2200 GMT) on Wednesday, January 14, for the undocking of the SpaceX Crew-11 mission from the International...

Neuralink Plans High-Volume Brain Implant Production and Fully Automated Surgery by 2026

Elon Musks brain-computer interface company Neuralink is preparing for a major expansion, announcing plans to begin high-volume production of its brain implant devices and transition to a fully automated surgical procedure...

Jared Isaacman Confirmed as NASA Administrator, Becomes 15th Leader of U.S. Space Agency

The U.S. Senate has officially confirmed billionaire private astronaut Jared Isaacman as the new NASA administrator, making him the 15th leader in the agencys history. The confirmation, which took place on Wednesday, marks...

Technology

SK Hynix Eyes Up to $14 Billion U.S. IPO to Fund AI Chip Expansion

South Korean memory chip giant SK Hynix has submitted a confidential filing for a U.S. stock market listing in 2026, with sources indicating the move could raise as much as $14 billion. The company intends to offer...

Meta Ties Executive Pay to Aggressive Stock Price Targets in Major Retention Push

Meta Platforms made a significant move this week by granting restricted stock units and stock options to several of its most senior leaders, including Chief Financial Officer Susan Li and Chief Technology Officer Andrew...

SpaceX IPO Filing Expected This Week as Valuation Could Surpass $75 Billion

Elon Musks SpaceX is reportedly moving closer to going public, with plans to submit its initial public offering prospectus to regulators as early as this week or next, according to a report by The Information citing a...

OpenAI Pulls the Plug on Sora, Ending $1 Billion Disney Partnership

OpenAI has officially shut down Sora, its AI-powered video generation tool, in a move that blindsided partners and staff alike and effectively ended a landmark deal with Walt Disney Co. The decision marks a major...

Golden Dome Missile Defense: Anduril and Palantir Join Forces on Trump's $185B Space Shield

Tech-forward defense companies Anduril Industries and Palantir Technologies are reportedly joining forces to develop critical software for the United States most ambitious missile defense initiative to date the Golden...