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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

US Launches New Trade Investigation Into Vietnam Over Intellectual Property Concerns

The United States has initiated a new trade investigation into Vietnams handling of intellectual property (IP) rights, a move that could eventually lead to additional tariffs on Vietnamese imports. The investigation,...

US Dollar Slips as Markets Weigh Potential US-Iran Peace Deal and Oil Price Outlook

The U.S. dollar weakened slightly on Friday as investor confidence improved following comments from President Donald Trump regarding a possible peace agreement between the United States and Iran. The prospect of easing...

Asian Currencies Steady as U.S.-Iran Ceasefire Extension Hopes Weigh on Dollar

Asian currencies traded in a narrow range on Friday while the U.S. dollar remained largely unchanged, as investors assessed reports suggesting the United States and Iran are close to extending their ceasefire agreement....

Asian Stocks Rally as AI Boom and Iran Ceasefire Progress Lift Market Sentiment

Asian stock markets posted strong gains on Friday, supported by a global technology rally and growing optimism surrounding a potential extension of the ceasefire between the United States and Iran. Investor confidence...

Tokyo Inflation Cools in May, Supporting BOJ’s Cautious Rate Hike Path

Tokyo consumer inflation slowed in May, reinforcing expectations that the Bank of Japan (BOJ) will continue taking a measured approach to monetary policy tightening as inflationary pressures remain moderate. According to...

Politics

US Southern Command Chief Holds Rare Military Meeting With Cuban Officials at Guantanamo Bay

A rare high-level military meeting between the United States and Cuba took place at the perimeter of the U.S. Naval Station at Guantanamo Bay, marking a significant development in U.S.-Cuba relations amid growing...

Trump Nears Decision on Iran Ceasefire Extension as Key Disputes Remain

U.S. President Donald Trump said Friday that he is close to making a final decision on a proposed agreement to extend the current ceasefire with Iran, although major disagreements between Washington and Tehran continue to...

Trump Signs Executive Order to Expand Access to Federal Lands in the U.S.

U.S. President Donald Trump signed an executive order on Friday aimed at removing restrictions that limit access to federal lands across the United States, according to a statement from the White House. The move is part of...

Netanyahu Gaza Expansion Plan Sparks Hamas Condemnation and International Concern

Israeli Prime Minister Benjamin Netanyahus announcement that Israel plans to expand its area of control in Gaza has drawn strong criticism from Hamas, European governments, and residents of the Palestinian territory. The...

Russia Prepares New Large-Scale Attack on Ukraine, Zelenskiy Warns

Ukrainian President Volodymyr Zelenskiy has warned that Russia is preparing a major new attack on Ukraine, citing intelligence reports that indicate plans for a large-scale military strike. The announcement comes as...

Science

Blue Origin New Glenn Rocket Explodes During Launch Pad Test, Delaying Space Ambitions

Blue Origin suffered a major setback after its uncrewed New Glenn rocket exploded during a launch pad test in Florida on Thursday, raising new challenges for Jeff Bezos space company as it competes with Elon Musks SpaceX...

SpaceX Delays Starship V3 Launch Ahead of Potential Record IPO

SpaceX on Thursday postponed the highly anticipated launch of its 12th Starship rocket test from Texas after technical issues interrupted the final countdown. The company now plans to attempt the Starship V3 launch again...

Trump Administration Releases New UFO Files and Apollo Mission Records

The U.S. Defense Department has released dozens of previously classified UFO-related files following an order from President Donald Trump, sparking renewed debate over unidentified anomalous phenomena (UAP) and government...

China vs. NASA: The New Moon Race and What's at Stake by 2030

The space race is back and this time, its a direct competition between the United States and China for dominance on the lunar surface. NASAs Artemis II mission recently made history when four astronauts flew farther into...

NASA Artemis II: First Crewed Moon Mission Since Apollo Takes Four Astronauts on 10-Day Lunar Journey

NASAs Artemis II mission launched Wednesday, marking humanitys return to crewed lunar exploration for the first time since the Apollo era. Carrying four astronauts aboard the Orion spacecraft, this historic 10-day mission...

Technology

Kentucky School District Secures $27 Million in Social Media Addiction Lawsuit Settlements

A Kentucky school district has secured nearly $27 million in settlements from major social media companies over allegations that their platforms contributed to a growing student mental health crisis. The financial details,...

MongoDB Q1 FY2027 Earnings Beat Expectations, Raises Full-Year Outlook

MongoDB (NASDAQ: MDB) delivered stronger-than-expected first-quarter fiscal 2027 results, fueled by growing demand for its database platform among enterprises and organizations developing artificial intelligence...

SpaceX IPO Could Become Largest in History with $1.8 Trillion Valuation Target

Elon Musks SpaceX is reportedly moving forward with plans for a historic initial public offering (IPO), targeting a valuation of at least $1.8 trillion. According to a Bloomberg News report citing sources familiar with the...

Autodesk Beats Q1 Estimates, Acquires MaintainX for $3.6 Billion

Autodesk (NASDAQ: ADSK) reported stronger-than-expected financial results for its fiscal first quarter and announced a major $3.6 billion acquisition of MaintainX, a move that strengthens its position in AI-powered...

US Quantum Stocks Surge After $2 Billion Government Investment

The U.S. Department of Commerce has sparked major excitement across the technology and financial sectors after announcing plans to invest $2 billion into quantum computing and advanced hardware companies through the CHIPS...